7x-8x=9-x

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Solution for 7x-8x=9-x equation: 


Simplifying
7x + -8x = 9 + -1x

Combine like terms: 7x + -8x = -1x
-1x = 9 + -1x

Add 'x' to each side of the equation.
-1x + x = 9 + -1x + x

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

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

Solving
0 = 9

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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