3y-9=2y-18

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Solution for 3y-9=2y-18 equation:


Simplifying
3y + -9 = 2y + -18

Reorder the terms:
-9 + 3y = 2y + -18

Reorder the terms:
-9 + 3y = -18 + 2y

Solving
-9 + 3y = -18 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
-9 + 3y + -2y = -18 + 2y + -2y

Combine like terms: 3y + -2y = 1y
-9 + 1y = -18 + 2y + -2y

Combine like terms: 2y + -2y = 0
-9 + 1y = -18 + 0
-9 + 1y = -18

Add '9' to each side of the equation.
-9 + 9 + 1y = -18 + 9

Combine like terms: -9 + 9 = 0
0 + 1y = -18 + 9
1y = -18 + 9

Combine like terms: -18 + 9 = -9
1y = -9

Divide each side by '1'.
y = -9

Simplifying
y = -9

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