(-13)-(-13)=

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


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

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

Combine like terms: -13 + 13 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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