3(y-9)=12

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Solution for 3(y-9)=12 equation: 


Simplifying
3(y + -9) = 12

Reorder the terms:
3(-9 + y) = 12
(-9 * 3 + y * 3) = 12
(-27 + 3y) = 12

Solving
-27 + 3y = 12

Solving for variable 'y'.

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

Add '27' to each side of the equation.
-27 + 27 + 3y = 12 + 27

Combine like terms: -27 + 27 = 0
0 + 3y = 12 + 27
3y = 12 + 27

Combine like terms: 12 + 27 = 39
3y = 39

Divide each side by '3'.
y = 13

Simplifying
y = 13

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