12y-3=3y+15

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Solution for 12y-3=3y+15 equation:


Simplifying
12y + -3 = 3y + 15

Reorder the terms:
-3 + 12y = 3y + 15

Reorder the terms:
-3 + 12y = 15 + 3y

Solving
-3 + 12y = 15 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-3 + 12y + -3y = 15 + 3y + -3y

Combine like terms: 12y + -3y = 9y
-3 + 9y = 15 + 3y + -3y

Combine like terms: 3y + -3y = 0
-3 + 9y = 15 + 0
-3 + 9y = 15

Add '3' to each side of the equation.
-3 + 3 + 9y = 15 + 3

Combine like terms: -3 + 3 = 0
0 + 9y = 15 + 3
9y = 15 + 3

Combine like terms: 15 + 3 = 18
9y = 18

Divide each side by '9'.
y = 2

Simplifying
y = 2

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