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He system of linear equations -2x + y = 8 and -3x - y = 7 is graphed below.

1 Answer

3 votes

Answer:

(-3,2)

Explanation:

To solve this, I will use substitution. First, isolate y in one of the equations;

-2x+y=8

-3x-y=7

-2x+y=8 is the same as y=2x+8, Now plug y into the other equation to solve for x;

-3x-(2x+8)=7 Solve for x

-5x-8=7

-5x=15

x=-3, Now plug in x in either equation to solve for y;

-2(-3)+y=8

6+y=8

y=2, The answer to this system is (-3,2)

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