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Rufina [12.5K]
3 years ago
7

URGENT!

Mathematics
2 answers:
serg [7]3 years ago
7 0

Answer:

number one is the appropriate answer for this question

Zina [86]3 years ago
6 0
The answer to 1. (What x equals) is 2
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Systems of equations, solve by substitution please!<br> x + 7y = -37<br> 4x - 3y = 7
Svetradugi [14.3K]
Answer:

1. x = -37 - 7y

2. x = 7+3y/4


​​
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Elena L [17]

Answer:

question 3 would be C. and question 4 would be A.

Step-by-step explanation:

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What is the reason for each step in the solution of the equation?
fredd [130]
Could you rewrite this please? It is fairly difficult to read. 
8 0
3 years ago
What is the equation of the line that passes through the points (0,4) and (3,-2)?
Nadusha1986 [10]

***NOTE: Please check that you wrote the numbers in the question/answer choices correctly. The answer to this problem doesn't match the answer choice. Thank you!

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

First let's find the slope (m)

The formula to find slope using two points is

\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

In this case...

y_{2} =-2\\y_{1} =4\\x_{2} =3\\x_{1} =0

^^^Plug these numbers into the formula for slope...

\frac{-2-4}{3 - (0)}

\frac{-6}{3}

-2

^^^This is your slope

Here is what we have so far for the slope intercept formula:

y = -2x + b

Now we must find b

To do that you must plug in a point the line goes through in the x and y of the equation, then solve for b

For this explanation we will use the point (0,4) although you could also do it with point (3, -2) and you should get the same answer  

4 = -2(0) + b

4 = 0 + b

4 = b

NOTE: For this particular problem you wouldn't technically need to go through the steps above to find b. In this case one of the points given, (0, 4) is already the y-intercept of the line (b)

y = -2x + 4

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0
3 years ago
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