12(3)-3y=15

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Solution for 12(3)-3y=15 equation: 


Simplifying
12(3) + -3y = 15

Multiply 12 * 3
36 + -3y = 15

Solving
36 + -3y = 15

Solving for variable 'y'.

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

Add '-36' to each side of the equation.
36 + -36 + -3y = 15 + -36

Combine like terms: 36 + -36 = 0
0 + -3y = 15 + -36
-3y = 15 + -36

Combine like terms: 15 + -36 = -21
-3y = -21

Divide each side by '-3'.
y = 7

Simplifying
y = 7

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