9x+9=9x-9

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Solution for 9x+9=9x-9 equation: 


Simplifying
9x + 9 = 9x + -9

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

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

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

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

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

Solving
9 = -9

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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