3.50x2=x

Solution for 3.50x2=x equation:

3.50x^2=x

We move all terms to the left:

3.50x^2-(x)=0

We add all the numbers together, and all the variables

3.50x^2-1x=0

a = 3.50; b = -1; c = 0;
Δ = b2-4ac
Δ = -12-4·3.50·0
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{-(-1)-1}{2*3.50}=\frac{0}{7}
=0
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+1}{2*3.50}=\frac{2}{7}
=2/7
$