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Kaylin
Mathematics
27 June, 09:36
Solve system by elimination
8x-8y=-16
-8x-7y=-29
+1
Answers (
1
)
Jerry Barton
27 June, 10:05
0
Add these together.
You get - 15y=-45
So y=3
Now plug in to first equation.
8x-8 (3) = -16
8x-24=-16
8x=8 so x=1
Check both values in second equation.
-8 (1) - 7 (3) =
-8-21=-29
It works ... so x=1, y=3
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