-[-(-7)]=

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Solution for -[-(-7)]= equation: 


Simplifying
-1[-1(-7)] = 0

Multiply -1 * -7
-1[7] = 0

Multiply -1 * 7
-7 = 0

Solving
-7 = 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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