-x+x+4=7

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Solution for -x+x+4=7 equation: 


Simplifying
-1x + x + 4 = 7

Reorder the terms:
4 + -1x + x = 7

Combine like terms: -1x + x = 0
4 + 0 = 7
4 = 7

Solving
4 = 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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