-4/3x+18=-2x+20

Solution for -4/3x+18=-2x+20 equation:

-4/3x+18=-2x+20

We move all terms to the left:

-4/3x+18-(-2x+20)=0


Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R


We get rid of parentheses

-4/3x+2x-20+18=0

We multiply all the terms by the denominator


2x*3x-20*3x+18*3x-4=0

Wy multiply elements

6x^2-60x+54x-4=0

We add all the numbers together, and all the variables

6x^2-6x-4=0

a = 6; b = -6; c = -4;
Δ = b2-4ac
Δ = -62-4·6·(-4)
Δ = 132
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:

$\sqrt{\Delta}=\sqrt{132}=\sqrt{4*33}=\sqrt{4}*\sqrt{33}=2\sqrt{33}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-2\sqrt{33}}{2*6}=\frac{6-2\sqrt{33}}{12}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+2\sqrt{33}}{2*6}=\frac{6+2\sqrt{33}}{12}
$