-6.4-(-7.9)=

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Solution for -6.4-(-7.9)= equation: 


Simplifying
-6.4 + -1(-7.9) = 0

Multiply -1 * -7.9
-6.4 + 7.9 = 0

Combine like terms: -6.4 + 7.9 = 1.5
1.5 = 0

Solving
1.5 = 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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