15-19=20

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Solution for 15-19=20 equation: 


Simplifying
15 + -19 = 20

Combine like terms: 15 + -19 = -4
-4 = 20

Solving
-4 = 20

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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