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30-x=80-x3
We move all terms to the left:
30-x-(80-x3)=0
We add all the numbers together, and all the variables
-(-1x^3+80)-x+30=0
We add all the numbers together, and all the variables
-(-1x^3+80)-1x+30=0
We get rid of parentheses
1x^3-1x-80+30=0
We do not support expression: x^3
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