-(-3.5)+(-12.8)=

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Solution for -(-3.5)+(-12.8)= equation: 


Simplifying
-1(-3.5) + (-12.8) = 0

Multiply -1 * -3.5
3.5 + (-12.8) = 0
3.5 + -12.8 = 0

Combine like terms: 3.5 + -12.8 = -9.3
-9.3 = 0

Solving
-9.3 = 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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