-7=1-1

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Solution for -7=1-1 equation: 


Simplifying
-7 = 1 + -1

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

Solving
-7 = 0

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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