15-2y+9y=36

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Solution for 15-2y+9y=36 equation: 


Simplifying
15 + -2y + 9y = 36

Combine like terms: -2y + 9y = 7y
15 + 7y = 36

Solving
15 + 7y = 36

Solving for variable 'y'.

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

Add '-15' to each side of the equation.
15 + -15 + 7y = 36 + -15

Combine like terms: 15 + -15 = 0
0 + 7y = 36 + -15
7y = 36 + -15

Combine like terms: 36 + -15 = 21
7y = 21

Divide each side by '7'.
y = 3

Simplifying
y = 3

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