-1.5-(-3.9)=

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Solution for -1.5-(-3.9)= equation: 


Simplifying
-1.5 + -1(-3.9) = 0

Multiply -1 * -3.9
-1.5 + 3.9 = 0

Combine like terms: -1.5 + 3.9 = 2.4
2.4 = 0

Solving
2.4 = 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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