-20-[-5-3(-2+1)]=

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Solution for -20-[-5-3(-2+1)]= equation: 


Simplifying
-20 + -1[-5 + -3(-2 + 1)] = 0

Combine like terms: -2 + 1 = -1
-20 + -1[-5 + -3(-1)] = 0

Multiply -3 * -1
-20 + -1[-5 + 3] = 0

Combine like terms: -5 + 3 = -2
-20 + -1[-2] = 0

Multiply -1 * -2
-20 + 2 = 0

Combine like terms: -20 + 2 = -18
-18 = 0

Solving
-18 = 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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