7-(-15)=

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Solution for 7-(-15)= equation: 


Simplifying
7 + -1(-15) = 0

Multiply -1 * -15
7 + 15 = 0

Combine like terms: 7 + 15 = 22
22 = 0

Solving
22 = 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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