-9(-9)-9y=81

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Solution for -9(-9)-9y=81 equation: 


Simplifying
-9(-9) + -9y = 81

Multiply -9 * -9
81 + -9y = 81

Add '-81' to each side of the equation.
81 + -81 + -9y = 81 + -81

Combine like terms: 81 + -81 = 0
0 + -9y = 81 + -81
-9y = 81 + -81

Combine like terms: 81 + -81 = 0
-9y = 0

Solving
-9y = 0

Solving for variable 'y'.

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

Divide each side by '-9'.
y = 0

Simplifying
y = 0

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