Question

Use addition to solve the linear system of equations. Include all of your work in your final answer. -x-y=4 x+2y=4

Answer 1

x=-12, y = 4

Explanation:

-x-y=4

x+2y=4

Add the equations together to eliminate x

-x-y=4

x+2y=4

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0x + y = 8

y = 8

Now find x

x + 2y = 4

x +2(8) = 4

x +16 = 4

x = 4-16

x = -12