-9(-5-3)=21

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Solution for -9(-5-3)=21 equation: 


Simplifying
-9(-5 + -3) = 21

Combine like terms: -5 + -3 = -8
-9(-8) = 21

Multiply -9 * -8
72 = 21

Solving
72 = 21

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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