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(-x)^3-x^2+9x+9=0
We add all the numbers together, and all the variables
-x^2+(-1x)^3+9x+9=0
We add all the numbers together, and all the variables
-1x^2+9x+(-1x)^3+9=0
We move all terms containing x to the left, all other terms to the right
-1x^2+9x+(-1x)^3=-9
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