1/2x-5=3.2x-5

Solution for 1/2x-5=3.2x-5 equation:

1/2x-5=3.2x-5

We move all terms to the left:

1/2x-5-(3.2x-5)=0


Domain of the equation: 2x!=0

x!=0/2

x!=0

x∈R


We get rid of parentheses

1/2x-3.2x+5-5=0

We multiply all the terms by the denominator


-(3.2x)*2x+5*2x-5*2x+1=0

We add all the numbers together, and all the variables

-(+3.2x)*2x+5*2x-5*2x+1=0

We multiply parentheses

-6x^2+5*2x-5*2x+1=0

Wy multiply elements

-6x^2+10x-10x+1=0

We add all the numbers together, and all the variables

-6x^2+1=0

a = -6; b = 0; c = +1;
Δ = b2-4ac
Δ = 02-4·(-6)·1
Δ = 24
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:

$\sqrt{\Delta}=\sqrt{24}=\sqrt{4*6}=\sqrt{4}*\sqrt{6}=2\sqrt{6}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-2\sqrt{6}}{2*-6}=\frac{0-2\sqrt{6}}{-12}
=-\frac{2\sqrt{6}}{-12}
=-\frac{\sqrt{6}}{-6}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+2\sqrt{6}}{2*-6}=\frac{0+2\sqrt{6}}{-12}
=\frac{2\sqrt{6}}{-12}
=\frac{\sqrt{6}}{-6}
$