7x^2-37x=30

Solution for 7x^2-37x=30 equation:

7x^2-37x=30

We move all terms to the left:

7x^2-37x-(30)=0

a = 7; b = -37; c = -30;
Δ = b2-4ac
Δ = -372-4·7·(-30)
Δ = 2209
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{2209}=47$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-37)-47}{2*7}=\frac{-10}{14}
=-5/7
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-37)+47}{2*7}=\frac{84}{14}
=6
$