-4+20=-4

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Solution for -4+20=-4 equation: 


Simplifying
-4 + 20 = -4

Combine like terms: -4 + 20 = 16
16 = -4

Solving
16 = -4

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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