-6.4-(-12.7)=

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Solution for -6.4-(-12.7)= equation: 


Simplifying
-6.4 + -1(-12.7) = 0

Multiply -1 * -12.7
-6.4 + 12.7 = 0

Combine like terms: -6.4 + 12.7 = 6.3
6.3 = 0

Solving
6.3 = 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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