-9y-9=-10y

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Solution for -9y-9=-10y equation:


Simplifying
-9y + -9 = -10y

Reorder the terms:
-9 + -9y = -10y

Solving
-9 + -9y = -10y

Solving for variable 'y'.

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

Add '10y' to each side of the equation.
-9 + -9y + 10y = -10y + 10y

Combine like terms: -9y + 10y = 1y
-9 + 1y = -10y + 10y

Combine like terms: -10y + 10y = 0
-9 + 1y = 0

Add '9' to each side of the equation.
-9 + 9 + 1y = 0 + 9

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

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

Divide each side by '1'.
y = 9

Simplifying
y = 9

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