-21+7=77

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Solution for -21+7=77 equation: 


Simplifying
-21 + 7 = 77

Combine like terms: -21 + 7 = -14
-14 = 77

Solving
-14 = 77

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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