x-x-20=90

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Solution for x-x-20=90 equation: 


Simplifying
x + -1x + -20 = 90

Reorder the terms:
-20 + x + -1x = 90

Combine like terms: x + -1x = 0
-20 + 0 = 90
-20 = 90

Solving
-20 = 90

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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