-(-3)-[-(-4)]-2+7=

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Solution for -(-3)-[-(-4)]-2+7= equation: 


Simplifying
-1(-3) + -1[-1(-4)] + -2 + 7 = 0

Multiply -1 * -3
3 + -1[-1(-4)] + -2 + 7 = 0

Multiply -1 * -4
3 + -1[4] + -2 + 7 = 0

Multiply -1 * 4
3 + -4 + -2 + 7 = 0

Combine like terms: 3 + -4 = -1
-1 + -2 + 7 = 0

Combine like terms: -1 + -2 = -3
-3 + 7 = 0

Combine like terms: -3 + 7 = 4
4 = 0

Solving
4 = 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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