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x(5+7)/4=13
We move all terms to the left:
x(5+7)/4-(13)=0
We add all the numbers together, and all the variables
x12/4-13=0
We multiply all the terms by the denominator
x12-13*4=0
We add all the numbers together, and all the variables
x^12-52=0
We do not support expression: x^12
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