-2=20-7

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Solution for -2=20-7 equation: 


Simplifying
-2 = 20 + -7

Combine like terms: 20 + -7 = 13
-2 = 13

Solving
-2 = 13

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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