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f(6)=2/3-5
We move all terms to the left:
f(6)-(2/3-5)=0
We add all the numbers together, and all the variables
f^6-(2/3-5)=0
We get rid of parentheses
f^6+5-2/3=0
We multiply all the terms by the denominator
f^6*3-2+5*3=0
We do not support efpression: f^6
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