-7y+9=2y+18

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Solution for -7y+9=2y+18 equation:


Simplifying
-7y + 9 = 2y + 18

Reorder the terms:
9 + -7y = 2y + 18

Reorder the terms:
9 + -7y = 18 + 2y

Solving
9 + -7y = 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 + -7y + -2y = 18 + 2y + -2y

Combine like terms: -7y + -2y = -9y
9 + -9y = 18 + 2y + -2y

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

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

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

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

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

Simplifying
y = -1

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