15.9-(-15.9)=

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Solution for 15.9-(-15.9)= equation: 


Simplifying
15.9 + -1(-15.9) = 0

Multiply -1 * -15.9
15.9 + 15.9 = 0

Combine like terms: 15.9 + 15.9 = 31.8
31.8 = 0

Solving
31.8 = 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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