9y-12=18+7y

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Solution for 9y-12=18+7y equation:


Simplifying
9y + -12 = 18 + 7y

Reorder the terms:
-12 + 9y = 18 + 7y

Solving
-12 + 9y = 18 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
-12 + 9y + -7y = 18 + 7y + -7y

Combine like terms: 9y + -7y = 2y
-12 + 2y = 18 + 7y + -7y

Combine like terms: 7y + -7y = 0
-12 + 2y = 18 + 0
-12 + 2y = 18

Add '12' to each side of the equation.
-12 + 12 + 2y = 18 + 12

Combine like terms: -12 + 12 = 0
0 + 2y = 18 + 12
2y = 18 + 12

Combine like terms: 18 + 12 = 30
2y = 30

Divide each side by '2'.
y = 15

Simplifying
y = 15

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