u=3u+8/u-4

Solution for u=3u+8/u-4 equation:

u=3u+8/u-4

We move all terms to the left:

u-(3u+8/u-4)=0


Domain of the equation: u-4)!=0

u∈R


We get rid of parentheses

u-3u-8/u+4=0

We multiply all the terms by the denominator


u*u-3u*u+4*u-8=0

We add all the numbers together, and all the variables

4u+u*u-3u*u-8=0

Wy multiply elements

u^2-3u^2+4u-8=0

We add all the numbers together, and all the variables

-2u^2+4u-8=0

a = -2; b = 4; c = -8;
Δ = b2-4ac
Δ = 42-4·(-2)·(-8)
Δ = -48
Delta is less than zero, so there is no solution for the equation