Solve this system of linear equations. Separate the x and the y values with a comma.

1 answer:

4 0

4x = -60 - 19y
-7x = -48 - 19y

Subtract the bottom equation from the top:
4x + 7x = -60 + 48 - 19y + 19y

Simplify:

11x = -12 -0y
11x = -12

Divide both sides by 11:
11x/11 = -12/11

Simplify:
x = -12/11
Then plug in x to solve for y: 4(-12/11) = -60 - 19y

Simplify: -48/11 = -60 - 19y

Add 60 to both sides (keep in mind 60 = 660/11):

-48/11 + 660/11 = -60 + 60 - 19y

Simplify:
612/11 = 0 - 19y
612/11 = -19y

Divide both sides by -19 (keep in mind that dividing by -19 is the same as multiplying by -1/19):
612/11 • -1/19 = -19y/-19

Simplify:
-612/209 = y
y = -612/209

So, the answer is: (-12/11, -612/209)

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