(-15)-(-18)=

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Solution for (-15)-(-18)= equation: 


Simplifying
(-15) + -1(-18) = 0
-15 + -1(-18) = 0

Multiply -1 * -18
-15 + 18 = 0

Combine like terms: -15 + 18 = 3
3 = 0

Solving
3 = 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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