15-4y-9y=54

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Solution for 15-4y-9y=54 equation: 


Simplifying
15 + -4y + -9y = 54

Combine like terms: -4y + -9y = -13y
15 + -13y = 54

Solving
15 + -13y = 54

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 + -13y = 54 + -15

Combine like terms: 15 + -15 = 0
0 + -13y = 54 + -15
-13y = 54 + -15

Combine like terms: 54 + -15 = 39
-13y = 39

Divide each side by '-13'.
y = -3

Simplifying
y = -3

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