15-12-(-13)=

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Solution for 15-12-(-13)= equation: 


Simplifying
15 + -12 + -1(-13) = 0

Multiply -1 * -13
15 + -12 + 13 = 0

Combine like terms: 15 + -12 = 3
3 + 13 = 0

Combine like terms: 3 + 13 = 16
16 = 0

Solving
16 = 0

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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