x=1/7x^2+x+3

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Solution for x=1/7x^2+x+3 equation: 



x=1/7x^2+x+3

We move all terms to the left:

x-(1/7x^2+x+3)=0



Domain of the equation: 7x^2+x+3)!=0

x∈R



We get rid of parentheses

x-1/7x^2-x-3=0

We multiply all the terms by the denominator


x*7x^2-x*7x^2-3*7x^2-1=0

Wy multiply elements

7x^3-7x^3-21x^2-1=0

We do not support expression: x^3

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