9y-12y=78

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Solution for 9y-12y=78 equation: 


Simplifying
9y + -12y = 78

Combine like terms: 9y + -12y = -3y
-3y = 78

Solving
-3y = 78

Solving for variable 'y'.

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

Divide each side by '-3'.
y = -26

Simplifying
y = -26

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