-7y-8=-9y

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Solution for -7y-8=-9y equation:


Simplifying
-7y + -8 = -9y

Reorder the terms:
-8 + -7y = -9y

Solving
-8 + -7y = -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.
-8 + -7y + 9y = -9y + 9y

Combine like terms: -7y + 9y = 2y
-8 + 2y = -9y + 9y

Combine like terms: -9y + 9y = 0
-8 + 2y = 0

Add '8' to each side of the equation.
-8 + 8 + 2y = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 2y = 0 + 8
2y = 0 + 8

Combine like terms: 0 + 8 = 8
2y = 8

Divide each side by '2'.
y = 4

Simplifying
y = 4

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