28-(-28)=

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Solution for 28-(-28)= equation: 


Simplifying
28 + -1(-28) = 0

Multiply -1 * -28
28 + 28 = 0

Combine like terms: 28 + 28 = 56
56 = 0

Solving
56 = 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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