27=3y-9y

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Solution for 27=3y-9y equation:


Simplifying
27 = 3y + -9y

Combine like terms: 3y + -9y = -6y
27 = -6y

Solving
27 = -6y

Solving for variable 'y'.

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

Add '6y' to each side of the equation.
27 + 6y = -6y + 6y

Combine like terms: -6y + 6y = 0
27 + 6y = 0

Add '-27' to each side of the equation.
27 + -27 + 6y = 0 + -27

Combine like terms: 27 + -27 = 0
0 + 6y = 0 + -27
6y = 0 + -27

Combine like terms: 0 + -27 = -27
6y = -27

Divide each side by '6'.
y = -4.5

Simplifying
y = -4.5

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