(-4)-(-9)=

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Solution for (-4)-(-9)= equation: 


Simplifying
(-4) + -1(-9) = 0
-4 + -1(-9) = 0

Multiply -1 * -9
-4 + 9 = 0

Combine like terms: -4 + 9 = 5
5 = 0

Solving
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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