-21-(-17)=

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Solution for -21-(-17)= equation: 


Simplifying
-21 + -1(-17) = 0

Multiply -1 * -17
-21 + 17 = 0

Combine like terms: -21 + 17 = -4
-4 = 0

Solving
-4 = 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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