(3-6)=21

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Solution for (3-6)=21 equation: 


Simplifying
(3 + -6) = 21

Combine like terms: 3 + -6 = -3
(-3) = 21
-3 = 21

Solving
-3 = 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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