(138.9)-(-78.8)=

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Solution for (138.9)-(-78.8)= equation: 


Simplifying
(138.9) + -1(-78.8) = 0
138.9 + -1(-78.8) = 0

Multiply -1 * -78.8
138.9 + 78.8 = 0

Combine like terms: 138.9 + 78.8 = 217.7
217.7 = 0

Solving
217.7 = 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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