4+2x=10(3/5x-2)

Solution for 4+2x=10(3/5x-2) equation:

4+2x=10(3/5x-2)

We move all terms to the left:

4+2x-(10(3/5x-2))=0


Domain of the equation: 5x-2))!=0

x∈R


We multiply all the terms by the denominator


2x*5x+4*5x-2))-(10(3-2))=0

We add all the numbers together, and all the variables

2x*5x+4*5x-2))-(101)=0

We add all the numbers together, and all the variables

2x*5x+4*5x=0

Wy multiply elements

10x^2+20x=0

a = 10; b = 20; c = 0;
Δ = b2-4ac
Δ = 202-4·10·0
Δ = 400
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{400}=20$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(20)-20}{2*10}=\frac{-40}{20}
=-2
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(20)+20}{2*10}=\frac{0}{20}
=0
$