12/1+12/1x=3x

Solution for 12/1+12/1x=3x equation:

12/1+12/1x=3x

We move all terms to the left:

12/1+12/1x-(3x)=0


Domain of the equation: 1x!=0

x∈R


We add all the numbers together, and all the variables

-3x+12/1x=0

We multiply all the terms by the denominator


-3x*1x+12=0

Wy multiply elements

-3x^2+12=0

a = -3; b = 0; c = +12;
Δ = b2-4ac
Δ = 02-4·(-3)·12
Δ = 144
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{144}=12$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-12}{2*-3}=\frac{-12}{-6}
=+2
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+12}{2*-3}=\frac{12}{-6}
=-2
$