-y+20=12

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Solution for -y+20=12 equation: 


Simplifying
-1y + 20 = 12

Reorder the terms:
20 + -1y = 12

Solving
20 + -1y = 12

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + -1y = 12 + -20

Combine like terms: 20 + -20 = 0
0 + -1y = 12 + -20
-1y = 12 + -20

Combine like terms: 12 + -20 = -8
-1y = -8

Divide each side by '-1'.
y = 8

Simplifying
y = 8

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