x-6/3x+2=-1

Solution for x-6/3x+2=-1 equation:

x-6/3x+2=-1

We move all terms to the left:

x-6/3x+2-(-1)=0


Domain of the equation: 3x!=0

x!=0/3

x!=0

x∈R


We add all the numbers together, and all the variables

x-6/3x+3=0

We multiply all the terms by the denominator


x*3x+3*3x-6=0

Wy multiply elements

3x^2+9x-6=0

a = 3; b = 9; c = -6;
Δ = b2-4ac
Δ = 92-4·3·(-6)
Δ = 153
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:

$\sqrt{\Delta}=\sqrt{153}=\sqrt{9*17}=\sqrt{9}*\sqrt{17}=3\sqrt{17}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-3\sqrt{17}}{2*3}=\frac{-9-3\sqrt{17}}{6}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+3\sqrt{17}}{2*3}=\frac{-9+3\sqrt{17}}{6}
$