x-x-90=0

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Solution for x-x-90=0 equation: 


Simplifying
x + -1x + -90 = 0

Reorder the terms:
-90 + x + -1x = 0

Combine like terms: x + -1x = 0
-90 + 0 = 0
-90 = 0

Solving
-90 = 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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