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

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


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

Combine like terms: 5 + 2 = 7
20 + -3[(7) + -1] = 0
20 + -3[7 + -1] = 0

Combine like terms: 7 + -1 = 6
20 + -3[6] = 0

Multiply -3 * 6
20 + -18 = 0

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

Solving
2 = 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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