18-(-3)=

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Solution for 18-(-3)= equation: 


Simplifying
18 + -1(-3) = 0

Multiply -1 * -3
18 + 3 = 0

Combine like terms: 18 + 3 = 21
21 = 0

Solving
21 = 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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