12-9=3+15

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Solution for 12-9=3+15 equation: 


Simplifying
12 + -9 = 3 + 15

Combine like terms: 12 + -9 = 3
3 = 3 + 15

Combine like terms: 3 + 15 = 18
3 = 18

Solving
3 = 18

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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