2/3x=-2x-10

Solution for 2/3x=-2x-10 equation:

2/3x=-2x-10

We move all terms to the left:

2/3x-(-2x-10)=0


Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R


We get rid of parentheses

2/3x+2x+10=0

We multiply all the terms by the denominator


2x*3x+10*3x+2=0

Wy multiply elements

6x^2+30x+2=0

a = 6; b = 30; c = +2;
Δ = b2-4ac
Δ = 302-4·6·2
Δ = 852
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:

$\sqrt{\Delta}=\sqrt{852}=\sqrt{4*213}=\sqrt{4}*\sqrt{213}=2\sqrt{213}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(30)-2\sqrt{213}}{2*6}=\frac{-30-2\sqrt{213}}{12}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(30)+2\sqrt{213}}{2*6}=\frac{-30+2\sqrt{213}}{12}
$