66-12+9=1

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Solution for 66-12+9=1 equation: 


Simplifying
66 + -12 + 9 = 1

Combine like terms: 66 + -12 = 54
54 + 9 = 1

Combine like terms: 54 + 9 = 63
63 = 1

Solving
63 = 1

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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