(-3.9)+7.1+(-7.8)=

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Solution for (-3.9)+7.1+(-7.8)= equation: 


Simplifying
(-3.9) + 7.1 + (-7.8) = 0
-3.9 + 7.1 + (-7.8) = 0
-3.9 + 7.1 + -7.8 = 0

Combine like terms: -3.9 + 7.1 = 3.2
3.2 + -7.8 = 0

Combine like terms: 3.2 + -7.8 = -4.6
-4.6 = 0

Solving
-4.6 = 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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