-9-y=-3y+15

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Solution for -9-y=-3y+15 equation:


Simplifying
-9 + -1y = -3y + 15

Reorder the terms:
-9 + -1y = 15 + -3y

Solving
-9 + -1y = 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.
-9 + -1y + 3y = 15 + -3y + 3y

Combine like terms: -1y + 3y = 2y
-9 + 2y = 15 + -3y + 3y

Combine like terms: -3y + 3y = 0
-9 + 2y = 15 + 0
-9 + 2y = 15

Add '9' to each side of the equation.
-9 + 9 + 2y = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 2y = 15 + 9
2y = 15 + 9

Combine like terms: 15 + 9 = 24
2y = 24

Divide each side by '2'.
y = 12

Simplifying
y = 12

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