18.4-(-18.9)=

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Solution for 18.4-(-18.9)= equation: 


Simplifying
18.4 + -1(-18.9) = 0

Multiply -1 * -18.9
18.4 + 18.9 = 0

Combine like terms: 18.4 + 18.9 = 37.3
37.3 = 0

Solving
37.3 = 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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