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8x+104-(x*x*x)=-15x+20
We move all terms to the left:
8x+104-(x*x*x)-(-15x+20)=0
We add all the numbers together, and all the variables
8x-(+x*x*x)-(-15x+20)+104=0
We get rid of parentheses
8x-x*x*x+15x-20+104=0
We add all the numbers together, and all the variables
23x-x*x*x+84=0
Wy multiply elements
-1x^3*x+23x+84=0
We do not support expression: x^3
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