(-4)+(-5)=15

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Solution for (-4)+(-5)=15 equation: 


Simplifying
(-4) + (-5) = 15
-4 + (-5) = 15
-4 + -5 = 15

Combine like terms: -4 + -5 = -9
-9 = 15

Solving
-9 = 15

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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