x+8-x-7=9

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


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

Reorder the terms:
8 + -7 + x + -1x = 9

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

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

Solving
1 = 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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