0.8=3X+1/x+1

Solution for 0.8=3X+1/x+1 equation:

0.8=3X+1/X+1

We move all terms to the left:

0.8-(3X+1/X+1)=0


Domain of the equation: X+1)!=0

X∈R


We get rid of parentheses

-3X-1/X-1+0.8=0

We multiply all the terms by the denominator


-3X*X-1*X+(0.8)*X-1=0

We add all the numbers together, and all the variables

-1X-3X*X+(0.8)*X-1=0

We multiply parentheses

-1X-3X*X+0.8X-1=0

Wy multiply elements

-3X^2-1X+0.8X-1=0

We add all the numbers together, and all the variables

-3X^2-0.2X-1=0

a = -3; b = -0.2; c = -1;
Δ = b2-4ac
Δ = -0.22-4·(-3)·(-1)
Δ = -11.96
Delta is less than zero, so there is no solution for the equation