-9+7=15

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Solution for -9+7=15 equation: 


Simplifying
-9 + 7 = 15

Combine like terms: -9 + 7 = -2
-2 = 15

Solving
-2 = 15

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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