2/3x-5/6x=8

Solution for 2/3x-5/6x=8 equation:

2/3x-5/6x=8

We move all terms to the left:

2/3x-5/6x-(8)=0


Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R



Domain of the equation: 6x!=0

x!=0/6

x!=0

x∈R


We calculate fractions


12x/18x^2+(-15x)/18x^2-8=0

We multiply all the terms by the denominator


12x+(-15x)-8*18x^2=0

Wy multiply elements

-144x^2+12x+(-15x)=0

We get rid of parentheses

-144x^2+12x-15x=0

We add all the numbers together, and all the variables

-144x^2-3x=0

a = -144; b = -3; c = 0;
Δ = b2-4ac
Δ = -32-4·(-144)·0
Δ = 9
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{9}=3$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-3}{2*-144}=\frac{0}{-288}
=0
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+3}{2*-144}=\frac{6}{-288}
=-1/48
$