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7(2-x)+9x=x(2+7)
We move all terms to the left:
7(2-x)+9x-(x(2+7))=0
We add all the numbers together, and all the variables
7(-1x+2)+9x-(x9)=0
We add all the numbers together, and all the variables
-1x^9+9x+7(-1x+2)=0
We multiply parentheses
-1x^9+9x-7x+14=0
We do not support expression: x^9
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