solving the system of equation x--2y=5 and 3x+15=-6

Answers

Answer 1

x=-7

y=-6

Further Explanation  

One variable linear equation is an equation that has a variable and the exponent number is one. Can be stated in the form:

ax=b  ax + b = c,

where a, b, and c are constants, x is a variable

Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

ax+by=c  

x, y = variable

x--2y=5 ⇒ equation 1

3x+15=-6 ⇒ equation 2

Solve equation 2 for x

[tex]\tt 3x+15=-6\\\\3x=-21\\\\x=-7[/tex]

Input x to equation 1 for y

[tex]\tt -7-2y=5\\\\-2y=12\\\\y=-6[/tex]


Related Questions

a simple machine makes our work easier and faster​

Answers

It does, because instead of having to use hands and other things we can use the machine and it is twice as fast!

Answer:

yes

Explanation:

I think

in what ways do you think teenagers most often fail to take good care of our earth and the environment

Answers

Answer:

Litering, though it applies to everyone, Some hyman beings lack sense and care for their environment

Many teenagers don’t care enough for the earth, so they liter. This causes tons of pollution making it harder for us people to breath especially for people who have asthma.

Tanisha says that the moon looks dark from earth when the moon is in 2 different places

Answers

Answer:

true

Explanation:

Answer:

She is wrong, this is because the moon is dark, meaning that the moon would have to be behind Earth and being blocked from sunlight. For example, if the sun is on the left, the Earth in the middle, the moon would have to be on the right, behind Earth. The moon is dark because the rays only are able to hit the Earth, due to the moon's position.

Where is the location of the department of homeland security major units in the USA?

Answers

Answer:

DHS headquarters in Washington D.C. St. Elizabeths West Campus, Washington, D.C., U.S.

Subsidiary: Federal Emergency Management ...

Jurisdiction: United States

Explanation:

Answer:Washington DC

Explanation:

What happens at a convergent boundary?

A. Magnetism occurs as lithospheric plates are attracted toward each other by gravity.

B. Mountains form as lithospheric plates move side by side past each other.

C. Earthquakes occur as lithospheric plates move away from each other.

D. Collisions occur as lithospheric plates move toward each other.

Answers

Answer:

At convergent boundaries, collisions occur as lithospheric plates move toward each other.

Explanation:

A is not correct because the movement of the tectonic plates is not driven by magnetism.

B is not correct because at this type of boundary the tectonic plates move toward each other, not slide past each other.

C is not correct because the plates move toward each other at this type of boundary, not move away from each other.

D is correct because at this type of boundary the plates move toward each other, and as they do collisions occur, resulting in the formation of mountains and subduction zones.

What are the Great Lakes? just name them and I will give you brainiest.

Answers

Answer:

There are 5  great lakes

Explanation:

1. Superior

2. Huron

3. Michagon

4. Erie

5. Ontario

Which phrase describes non-foliated rocks?

have grains in parallel layers
include quartzite and marble
tend to split along their bands
form from crystallized magma

Answers

Are these all the options

Answer:

I think that it's C tell me if Im wrong.

Explanation:

___ lines cut the earth's section from ___ to ___

Answers

Answer:

the earth is cut because  those cuts are the country

Explanation:

12. Which of these economic systems have the least in common?
A. market economy and capitalism
B. command economy and socialism
C. command economy and capitalism
D. free-enterprise economy and market economy​

Answers

B. Command economy and socialism

Answer:

its c. command economy and capitalism

Which of these would not be a colony in the Middle colonies?
A.New York
B.Virginia
C.Pennsylvania
D.Rhode Island

Answers

Answer:

Rhode Island and Virginia.

Explanation:

Please help will give brainliest if correct!

Answers

The answer fam is..........

Clan - People united by kinship ties

Kinship ties - Social relationships, particularly  among people who are related by family

Household - People who live together in a single residence

Naturalized citizen - Immigrants who obtain citizenship in their new country

Bowen's reaction series:______.A. creates a progressively more mafic melt.
B. shows the sequence in which different sulfate minerals form during the progressive cooling of a melt.
C. was established by laboratory experiments.
D. has a discontinuous track in which a progressive change with decreasing temperature is observed, from calcium-rich to sodium-rich plagioclase.

Answers

Answer:

B i think

Explanation:

1. Why is anaerobic respiration a chemical reaction?

Answers

Answer:In anaerobic respiration, glucose breaks down without oxygen. The chemical reaction transfers energy from glucose to the cell. Anaerobic respiration produces lactic acid, rather than carbon dioxide and water.

Explanation:

10) Choose the answer that is not an example of culture:
a) The English Language
b) The new Drake song
c) The Daniel Boone National Forest
d) The food served in the cafeteria

Answers

B- the new Drake song

Answer:okokok

Explanation:

What do you know about climate change?
How do you feel about it?
What steps have you taken to fight climate change in your everyday life?
What steps have you taken to fight climate change in your professional life?
Do you think your steps are effective?
Do you think companies and corporations are doing enough to fight climate change?

Answers

Answer:

climate change is caused by the burning of fossil fuels damaging the ozone. the ozone protects the earth from getting extremely hot. when it gets hot the fresh water dries up, and many crops die

USING FOUR OR MORE COMPLETE SENTENCES, IDENTIFY THREE TYPES OF CULTURES IN THE WORLD AND DESCRIBE ONE CHARACTERISTIC OF EACH. oops caps lol sorry

Answers

Answer:

Explanation:

The question you have asked is a very very wide one, with a lot of different opinions. But if I were to answer, I would say types of culture include;

Clan Culture.

Hierarchy Culture.

Market Culture.

Clan Culture: is a family-like or tribe-like type of environment. A clan culture places a lot of emphasis on consensus and commonality of goals without ignoring that of values. I would also add that Clan cultures are very collaborative and their characteristics include;

Effective communication.

Diversity.

Learning opportunities.

Recognition.

Clear and defined purpose.

Meaning and purpose.

Teamwork.

The number of salmon has ___________ in part because of human activities, such as building of dams and redirecting the flow of rivers for crops.

Answers

Answer:

Decreased

Explanation:

The number of salmon has decreased in part because of human activities, such as building of dams and redirecting the flow of rivers for crops.

Choose all of the characteristics that caused scientists to reclassify Pluto as a dwarf Planet
Icy body, similar to the Kuiper Belt objects
Rocky or gaseous composition
Extreme oval shaped orbit
Near circular shaped orbit
o It has not cleared its orbital path of other objects

Answers

Answer:

The answer is 2

The object would have to be irregularly shaped, orbit the Sun, and be traveling in a path free from other objects.

Explanation:

In the given statement two characteristics are correct that caused scientists to reclassify Pluto as a dwarf Planet. Extreme oval shaped orbit and t has not cleared its orbital path of other objects .

What is dwarf planet  ?

According to the IAU, a celestial body in direct orbit of the Sun that is sufficiently large that gravitational forces rather than rotational forces govern its shape is referred to as a "dwarf planet. mechanical forces (and so has the shape of an ellipsoid), but has not yet rid the area around it of other items.

Pluto was reduced to a dwarf planet by the International Astronomical Union (IAU) because it did not meet the three requirements for a full-sized planet. In essence, Pluto satisfies all the requirements but for the one that it "has not cleansed its neighboring neighborhood of other objects.

There are mountains, valleys, plains, and craters on Pluto's surface. Pluto's temperature can reach -375 to -400 degrees Fahrenheit (-226 to -240 degrees Celsius). The tallest mountains on Pluto range in height from 6,500 to 9,800 feet (2 to 3 kilometers).

Learn more about dwarf planet here

https://brainly.com/question/14539116

# SPJ 2

How do we know about the Earth’s inner structure

Answers

Answer:

Seismic waves from large earthquakes pass throughout the Earth. These waves contain vital information about the internal structure of the Earth. As seismic waves pass through the Earth, they are refracted, or bent, like rays of light bend when they pass through a glass prism.

Explanation:

How has science led to advancements that benefit society? a. Science increases the understanding of natural processes, which leads to technological advances. b. Scientific exploration has led to a social imbalance. c. Scientific understanding leads to technological advances, which contribute to environmental degradation. d. All of the above

Answers

Answer:

Science increases the understanding of natural processes, which leads to technological advances.

Explanation:

The study of science is a diligent inquire into the processes of nature. Scientists seek  to understand natural patterns and phenomena with the aim of harnessing them or modifying them where necessary for the purpose of improving the society.

Research into science ultimately leads to technological sophistication which in turn improves the standard of living of people in a given society. Technological advancement is a direct consequence of scientific research

Answer:

A. Science increases the understanding of natural processes, which leads to technological advances.

Explanation:

QUESTION 7
7) Choose the answer that best describes how a Kentuckian's sense of place may differ from a Texans.
a) Kentucky holds the Kentucky Derby once per year, which brings a tremendous amount of
income to the state
b) The climate of Texas is hotter, thus the people must dress appropriately
c) The government types between the two states differ, as they do not hold elections
d) Kentucky does not have a professional sports team, while Texas has multiple

Answers

Answer:

b) The climate of Texas is hotter, thus the people must dress appropriately

Explanation:

Weather is a big distinguishing factor when trying to determine sense of place.

Which are the two primary forces behind ocean currents? A. The positions of the Earth, the sun, and the moon B. Density differences in water C. Variation in water depth by latitude D. Energy transfer from winds. This is two answers.

Answers

Answer:

b

Explanation:

Answer:

B and D

Explanation:

Wind is the primary driving force of surface currents. Deep-ocean currents are driven by differences in the water's density

help plz I will mark brainyist answer​

Answers

Answer:

B. 1 is the answer as slope = y2-y1/x2-x1

which is given as 8-5/8-5= 1

the answer is b ffhhh

Which statement best describes the characteristics of areas near the equator?
A
Areas near the equator get less direct sunlight so the temperatures are lower.

B
Areas near the equator get more direct sunlight so the temperatures are higher.

C
Areas near the equator have more yearly rainfall so the temperatures are lower.

D
Areas near the equator have less yearly rainfall so the temperatures are higher.

Answers

Answer:

B . Areas near the equator get more direct sunlight so the temperatures are higher.

Explanation:

At equator, the sun is always over head and hits the surface directly. The surface is no at an angle to the sun.

The insolation here is very great and they received more direct sunlight.

Due to the high insolation, the temperature is higher than most part of the earth. Rainfall levels are also high as rain cloud easily forms here. In most equatorial region, both temperature and rainfall is high all year round.
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