-6=21+9

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Solution for -6=21+9 equation: 


Simplifying
-6 = 21 + 9

Combine like terms: 21 + 9 = 30
-6 = 30

Solving
-6 = 30

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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