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5 votes
You haft too use elimination to solve this thank you

You haft too use elimination to solve this thank you-example-1
User Yubaraj
by
8.6k points

1 Answer

5 votes

Answer:

x=0, y=-2

Explanation:

Because 9y appears twice in both equations, you can subtract the equations to eliminate the y variable so you can solve for x:

-7x + 9y = -18

-(4x + 9y = -18)

__________

-11x = 0

x = 0

Since we know x=0, then we plug it back into one of the equations to get the value of y:

-7x + 9y = -18

-7(0) + 9y = -18

0 + 9y = -18

9y = -18

y = -2

Therefore, x=0, and y=-2

User TechSavvySam
by
8.1k points

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