-3-(-15)=15

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Solution for -3-(-15)=15 equation: 


Simplifying
-3 + -1(-15) = 15

Multiply -1 * -15
-3 + 15 = 15

Combine like terms: -3 + 15 = 12
12 = 15

Solving
12 = 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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