30-1y=-12

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Solution for 30-1y=-12 equation: 


Simplifying
30 + -1y = -12

Solving
30 + -1y = -12

Solving for variable 'y'.

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

Add '-30' to each side of the equation.
30 + -30 + -1y = -12 + -30

Combine like terms: 30 + -30 = 0
0 + -1y = -12 + -30
-1y = -12 + -30

Combine like terms: -12 + -30 = -42
-1y = -42

Divide each side by '-1'.
y = 42

Simplifying
y = 42

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