27=18y-9y

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Solution for 27=18y-9y equation:


Simplifying
27 = 18y + -9y

Combine like terms: 18y + -9y = 9y
27 = 9y

Solving
27 = 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.
27 + -9y = 9y + -9y

Combine like terms: 9y + -9y = 0
27 + -9y = 0

Add '-27' to each side of the equation.
27 + -27 + -9y = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -9y = 0 + -27
-9y = 0 + -27

Combine like terms: 0 + -27 = -27
-9y = -27

Divide each side by '-9'.
y = 3

Simplifying
y = 3

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