30-9y=12

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Solution for 30-9y=12 equation: 


Simplifying
30 + -9y = 12

Solving
30 + -9y = 12

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 = 12 + -30

Combine like terms: 30 + -30 = 0
0 + -9y = 12 + -30
-9y = 12 + -30

Combine like terms: 12 + -30 = -18
-9y = -18

Divide each side by '-9'.
y = 2

Simplifying
y = 2

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