3 years ago

Infinito álgebra For -2x-9y=-25 and -4x-9y=-23

1 answer:

7 0

-2x -9y = -25
-(-4x -9y =-23)
2x = -2
x = -1

-2(-1) -9y = -25
2 - 9y = -25
-9y = -25 -2
-9y = -27
y = 3
(-1,3)

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