8y-15y=-31-39

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Solution for 8y-15y=-31-39 equation: 


Simplifying
8y + -15y = -31 + -39

Combine like terms: 8y + -15y = -7y
-7y = -31 + -39

Combine like terms: -31 + -39 = -70
-7y = -70

Solving
-7y = -70

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Divide each side by '-7'.
y = 10

Simplifying
y = 10

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