2x-7=19/x=

Solution for 2x-7=19/x= equation:

2x-7=19/x=

We move all terms to the left:

2x-7-(19/x)=0


Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

2x-(+19/x)-7=0

We get rid of parentheses

2x-19/x-7=0

We multiply all the terms by the denominator


2x*x-7*x-19=0

We add all the numbers together, and all the variables

-7x+2x*x-19=0

Wy multiply elements

2x^2-7x-19=0

a = 2; b = -7; c = -19;
Δ = b2-4ac
Δ = -72-4·2·(-19)
Δ = 201
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-7)-\sqrt{201}}{2*2}=\frac{7-\sqrt{201}}{4}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{201}}{2*2}=\frac{7+\sqrt{201}}{4}
$