F(x)=x-10/3x-21

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Solution for F(x)=x-10/3x-21 equation: 



(F)=F-10/3F-21

We move all terms to the left:

(F)-(F-10/3F-21)=0



Domain of the equation: 3F-21)!=0

F∈R



We get rid of parentheses

F-F+10/3F+21=0

We multiply all the terms by the denominator


F*3F-F*3F+21*3F+10=0

Wy multiply elements

3F^2-3F^2+63F+10=0

We add all the numbers together, and all the variables

63F+10=0

We move all terms containing F to the left, all other terms to the right

63F=-10

F=-10/63

F=-10/63

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