3+9=9+4

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Solution for 3+9=9+4 equation: 


Simplifying
3 + 9 = 9 + 4

Combine like terms: 3 + 9 = 12
12 = 9 + 4

Combine like terms: 9 + 4 = 13
12 = 13

Solving
12 = 13

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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