90-12y=-90

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Solution for 90-12y=-90 equation: 


Simplifying
90 + -12y = -90

Solving
90 + -12y = -90

Solving for variable 'y'.

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

Add '-90' to each side of the equation.
90 + -90 + -12y = -90 + -90

Combine like terms: 90 + -90 = 0
0 + -12y = -90 + -90
-12y = -90 + -90

Combine like terms: -90 + -90 = -180
-12y = -180

Divide each side by '-12'.
y = 15

Simplifying
y = 15

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