5x^2-7x=60

Solution for 5x^2-7x=60 equation:

5x^2-7x=60

We move all terms to the left:

5x^2-7x-(60)=0

a = 5; b = -7; c = -60;
Δ = b2-4ac
Δ = -72-4·5·(-60)
Δ = 1249
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{1249}}{2*5}=\frac{7-\sqrt{1249}}{10}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{1249}}{2*5}=\frac{7+\sqrt{1249}}{10}
$