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x12=66+x
We move all terms to the left:
x12-(66+x)=0
We add all the numbers together, and all the variables
x12-(x+66)=0
We add all the numbers together, and all the variables
x^12-(x+66)=0
We get rid of parentheses
x^12-x-66=0
We do not support expression: x^12
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