F(x)=-2/7x

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Solution for F(x)=-2/7x equation: 



(F)=-2/7F

We move all terms to the left:

(F)-(-2/7F)=0



Domain of the equation: 7F)!=0

F!=0/1

F!=0

F∈R



We get rid of parentheses

F+2/7F=0

We multiply all the terms by the denominator


F*7F+2=0

Wy multiply elements

7F^2+2=0

a = 7; b = 0; c = +2;
Δ = b2-4ac
Δ = 02-4·7·2
Δ = -56
Delta is less than zero, so there is no solution for the equation

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