solve for y 4x-4y=10, x-4y=20

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1 Answer

4x - 4y = 10

-4y = -4x + 10

y = x - 5/2

.

x - 4y = 20

-4y = -x + 20

y = (1/4)x - 5
by Level 13 User (103k points)

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