-36-3y+18=-21y+72+12y

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Solution for -36-3y+18=-21y+72+12y equation:


Simplifying
-36 + -3y + 18 = -21y + 72 + 12y

Reorder the terms:
-36 + 18 + -3y = -21y + 72 + 12y

Combine like terms: -36 + 18 = -18
-18 + -3y = -21y + 72 + 12y

Reorder the terms:
-18 + -3y = 72 + -21y + 12y

Combine like terms: -21y + 12y = -9y
-18 + -3y = 72 + -9y

Solving
-18 + -3y = 72 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
-18 + -3y + 9y = 72 + -9y + 9y

Combine like terms: -3y + 9y = 6y
-18 + 6y = 72 + -9y + 9y

Combine like terms: -9y + 9y = 0
-18 + 6y = 72 + 0
-18 + 6y = 72

Add '18' to each side of the equation.
-18 + 18 + 6y = 72 + 18

Combine like terms: -18 + 18 = 0
0 + 6y = 72 + 18
6y = 72 + 18

Combine like terms: 72 + 18 = 90
6y = 90

Divide each side by '6'.
y = 15

Simplifying
y = 15

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