13-(-42)=

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Solution for 13-(-42)= equation: 


Simplifying
13 + -1(-42) = 0

Multiply -1 * -42
13 + 42 = 0

Combine like terms: 13 + 42 = 55
55 = 0

Solving
55 = 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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