20-(-4)=

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Solution for 20-(-4)= equation: 


Simplifying
20 + -1(-4) = 0

Multiply -1 * -4
20 + 4 = 0

Combine like terms: 20 + 4 = 24
24 = 0

Solving
24 = 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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