9-21=48

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Solution for 9-21=48 equation: 


Simplifying
9 + -21 = 48

Combine like terms: 9 + -21 = -12
-12 = 48

Solving
-12 = 48

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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