-9[73-(20-18)]=

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Solution for -9[73-(20-18)]= equation: 


Simplifying
-9[73 + -1(20 + -18)] = 0

Combine like terms: 20 + -18 = 2
-9[73 + -1(2)] = 0

Multiply -1 * 2
-9[73 + -2] = 0

Combine like terms: 73 + -2 = 71
-9[71] = 0

Multiply -9 * 71
-639 = 0

Solving
-639 = 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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