21.39-12.99=

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Solution for 21.39-12.99= equation: 


Simplifying
21.39 + -12.99 = 0

Combine like terms: 21.39 + -12.99 = 8.4
8.4 = 0

Solving
8.4 = 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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