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7-4(4-x3x)=x+2
We move all terms to the left:
7-4(4-x3x)-(x+2)=0
We add all the numbers together, and all the variables
-4(-x3x+4)-(x+2)+7=0
We multiply parentheses
4x^3-(x+2)-16+7=0
We get rid of parentheses
4x^3-x-2-16+7=0
We do not support expression: x^3
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