(90-x)+(180-(90-x))=160

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Solution for (90-x)+(180-(90-x))=160 equation: 


Simplifying
(90 + -1x) + (180 + -1(90 + -1x)) = 160

Remove parenthesis around (90 + -1x)
90 + -1x + (180 + -1(90 + -1x)) = 160
90 + -1x + (180 + (90 * -1 + -1x * -1)) = 160
90 + -1x + (180 + (-90 + 1x)) = 160

Combine like terms: 180 + -90 = 90
90 + -1x + (90 + 1x) = 160

Remove parenthesis around (90 + 1x)
90 + -1x + 90 + 1x = 160

Reorder the terms:
90 + 90 + -1x + 1x = 160

Combine like terms: 90 + 90 = 180
180 + -1x + 1x = 160

Combine like terms: -1x + 1x = 0
180 + 0 = 160
180 = 160

Solving
180 = 160

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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