9x-9=9(x-1)+12

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Solution for 9x-9=9(x-1)+12 equation: 


Simplifying
9x + -9 = 9(x + -1) + 12

Reorder the terms:
-9 + 9x = 9(x + -1) + 12

Reorder the terms:
-9 + 9x = 9(-1 + x) + 12
-9 + 9x = (-1 * 9 + x * 9) + 12
-9 + 9x = (-9 + 9x) + 12

Reorder the terms:
-9 + 9x = -9 + 12 + 9x

Combine like terms: -9 + 12 = 3
-9 + 9x = 3 + 9x

Add '-9x' to each side of the equation.
-9 + 9x + -9x = 3 + 9x + -9x

Combine like terms: 9x + -9x = 0
-9 + 0 = 3 + 9x + -9x
-9 = 3 + 9x + -9x

Combine like terms: 9x + -9x = 0
-9 = 3 + 0
-9 = 3

Solving
-9 = 3

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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