-1/2x=-3x-5

Solution for -1/2x=-3x-5 equation:

-1/2x=-3x-5

We move all terms to the left:

-1/2x-(-3x-5)=0


Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R


We get rid of parentheses

-1/2x+3x+5=0

We multiply all the terms by the denominator


3x*2x+5*2x-1=0

Wy multiply elements

6x^2+10x-1=0

a = 6; b = 10; c = -1;
Δ = b2-4ac
Δ = 102-4·6·(-1)
Δ = 124
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:

$\sqrt{\Delta}=\sqrt{124}=\sqrt{4*31}=\sqrt{4}*\sqrt{31}=2\sqrt{31}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(10)-2\sqrt{31}}{2*6}=\frac{-10-2\sqrt{31}}{12}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(10)+2\sqrt{31}}{2*6}=\frac{-10+2\sqrt{31}}{12}
$