120-y=172

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Solution for 120-y=172 equation: 


Simplifying
120 + -1y = 172

Solving
120 + -1y = 172

Solving for variable 'y'.

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

Add '-120' to each side of the equation.
120 + -120 + -1y = 172 + -120

Combine like terms: 120 + -120 = 0
0 + -1y = 172 + -120
-1y = 172 + -120

Combine like terms: 172 + -120 = 52
-1y = 52

Divide each side by '-1'.
y = -52

Simplifying
y = -52

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