(9-x)+9+x=0

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Solution for (9-x)+9+x=0 equation: 


Simplifying
(9 + -1x) + 9 + x = 0

Remove parenthesis around (9 + -1x)
9 + -1x + 9 + x = 0

Reorder the terms:
9 + 9 + -1x + x = 0

Combine like terms: 9 + 9 = 18
18 + -1x + x = 0

Combine like terms: -1x + x = 0
18 + 0 = 0
18 = 0

Solving
18 = 0

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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