9y+18=-3y-18

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Solution for 9y+18=-3y-18 equation:


Simplifying
9y + 18 = -3y + -18

Reorder the terms:
18 + 9y = -3y + -18

Reorder the terms:
18 + 9y = -18 + -3y

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

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

Combine like terms: -3y + 3y = 0
18 + 12y = -18 + 0
18 + 12y = -18

Add '-18' to each side of the equation.
18 + -18 + 12y = -18 + -18

Combine like terms: 18 + -18 = 0
0 + 12y = -18 + -18
12y = -18 + -18

Combine like terms: -18 + -18 = -36
12y = -36

Divide each side by '12'.
y = -3

Simplifying
y = -3

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