12-7y=30+2y

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Solution for 12-7y=30+2y equation: 


Simplifying
12 + -7y = 30 + 2y

Solving
12 + -7y = 30 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
12 + -7y + -2y = 30 + 2y + -2y

Combine like terms: -7y + -2y = -9y
12 + -9y = 30 + 2y + -2y

Combine like terms: 2y + -2y = 0
12 + -9y = 30 + 0
12 + -9y = 30

Add '-12' to each side of the equation.
12 + -12 + -9y = 30 + -12

Combine like terms: 12 + -12 = 0
0 + -9y = 30 + -12
-9y = 30 + -12

Combine like terms: 30 + -12 = 18
-9y = 18

Divide each side by '-9'.
y = -2

Simplifying
y = -2

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