y-12+90=180

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Solution for y-12+90=180 equation: 


Simplifying
y + -12 + 90 = 180

Reorder the terms:
-12 + 90 + y = 180

Combine like terms: -12 + 90 = 78
78 + y = 180

Solving
78 + y = 180

Solving for variable 'y'.

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

Add '-78' to each side of the equation.
78 + -78 + y = 180 + -78

Combine like terms: 78 + -78 = 0
0 + y = 180 + -78
y = 180 + -78

Combine like terms: 180 + -78 = 102
y = 102

Simplifying
y = 102

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