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x(55+30)=400+30x
We move all terms to the left:
x(55+30)-(400+30x)=0
We add all the numbers together, and all the variables
x85-(30x+400)=0
We add all the numbers together, and all the variables
x^85-(30x+400)=0
We get rid of parentheses
x^85-30x-400=0
We do not support expression: x^85
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