-3(12-3y)-9y=7

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Solution for -3(12-3y)-9y=7 equation: 


Simplifying
-3(12 + -3y) + -9y = 7
(12 * -3 + -3y * -3) + -9y = 7
(-36 + 9y) + -9y = 7

Combine like terms: 9y + -9y = 0
-36 + 0 = 7
-36 = 7

Solving
-36 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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