X(6x-19)=-15

Solution for X(6x-19)=-15 equation:

X(6X-19)=-15

We move all terms to the left:

X(6X-19)-(-15)=0

We add all the numbers together, and all the variables

X(6X-19)+15=0

We multiply parentheses

6X^2-19X+15=0

a = 6; b = -19; c = +15;
Δ = b2-4ac
Δ = -192-4·6·15
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-19)-1}{2*6}=\frac{18}{12}
=1+1/2
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-19)+1}{2*6}=\frac{20}{12}
=1+2/3
$