x-3=-1/3x+1

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

x-3=-1/3x+1

We move all terms to the left:

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


Domain of the equation: 3x+1)!=0

x∈R


We get rid of parentheses

x+1/3x-1-3=0

We multiply all the terms by the denominator


x*3x-1*3x-3*3x+1=0

Wy multiply elements

3x^2-3x-9x+1=0

We add all the numbers together, and all the variables

3x^2-12x+1=0

a = 3; b = -12; c = +1;
Δ = b2-4ac
Δ = -122-4·3·1
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{-(-12)-2\sqrt{33}}{2*3}=\frac{12-2\sqrt{33}}{6}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-12)+2\sqrt{33}}{2*3}=\frac{12+2\sqrt{33}}{6}
$