-12y+9=129

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Solution for -12y+9=129 equation: 


Simplifying
-12y + 9 = 129

Reorder the terms:
9 + -12y = 129

Solving
9 + -12y = 129

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + -12y = 129 + -9

Combine like terms: 9 + -9 = 0
0 + -12y = 129 + -9
-12y = 129 + -9

Combine like terms: 129 + -9 = 120
-12y = 120

Divide each side by '-12'.
y = -10

Simplifying
y = -10

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