30-9y=27

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Solution for 30-9y=27 equation: 


Simplifying
30 + -9y = 27

Solving
30 + -9y = 27

Solving for variable 'y'.

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

Add '-30' to each side of the equation.
30 + -30 + -9y = 27 + -30

Combine like terms: 30 + -30 = 0
0 + -9y = 27 + -30
-9y = 27 + -30

Combine like terms: 27 + -30 = -3
-9y = -3

Divide each side by '-9'.
y = 0.3333333333

Simplifying
y = 0.3333333333

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