90x=90x-7

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Solution for 90x=90x-7 equation: 


Simplifying
90x = 90x + -7

Reorder the terms:
90x = -7 + 90x

Add '-90x' to each side of the equation.
90x + -90x = -7 + 90x + -90x

Combine like terms: 90x + -90x = 0
0 = -7 + 90x + -90x

Combine like terms: 90x + -90x = 0
0 = -7 + 0
0 = -7

Solving
0 = -7

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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