[4-(-5)-(-4)]=

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Solution for [4-(-5)-(-4)]= equation: 


Simplifying
[4 + -1(-5) + -1(-4)] = 0

Multiply -1 * -5
[4 + 5 + -1(-4)] = 0

Multiply -1 * -4
[4 + 5 + 4] = 0

Combine like terms: 4 + 5 = 9
[9 + 4] = 0

Combine like terms: 9 + 4 = 13
[13] = 0
13 = 0

Solving
13 = 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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