2y+18+12=9y-11-9

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Solution for 2y+18+12=9y-11-9 equation: 


Simplifying
2y + 18 + 12 = 9y + -11 + -9

Reorder the terms:
18 + 12 + 2y = 9y + -11 + -9

Combine like terms: 18 + 12 = 30
30 + 2y = 9y + -11 + -9

Reorder the terms:
30 + 2y = -11 + -9 + 9y

Combine like terms: -11 + -9 = -20
30 + 2y = -20 + 9y

Solving
30 + 2y = -20 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
30 + 2y + -9y = -20 + 9y + -9y

Combine like terms: 2y + -9y = -7y
30 + -7y = -20 + 9y + -9y

Combine like terms: 9y + -9y = 0
30 + -7y = -20 + 0
30 + -7y = -20

Add '-30' to each side of the equation.
30 + -30 + -7y = -20 + -30

Combine like terms: 30 + -30 = 0
0 + -7y = -20 + -30
-7y = -20 + -30

Combine like terms: -20 + -30 = -50
-7y = -50

Divide each side by '-7'.
y = 7.142857143

Simplifying
y = 7.142857143

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