4x+2=1/2x+12

Solution for 4x+2=1/2x+12 equation:

4x+2=1/2x+12

We move all terms to the left:

4x+2-(1/2x+12)=0


Domain of the equation: 2x+12)!=0

x∈R


We get rid of parentheses

4x-1/2x-12+2=0

We multiply all the terms by the denominator


4x*2x-12*2x+2*2x-1=0

Wy multiply elements

8x^2-24x+4x-1=0

We add all the numbers together, and all the variables

8x^2-20x-1=0

a = 8; b = -20; c = -1;
Δ = b2-4ac
Δ = -202-4·8·(-1)
Δ = 432
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{432}=\sqrt{144*3}=\sqrt{144}*\sqrt{3}=12\sqrt{3}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-20)-12\sqrt{3}}{2*8}=\frac{20-12\sqrt{3}}{16}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-20)+12\sqrt{3}}{2*8}=\frac{20+12\sqrt{3}}{16}
$