Hey haytham12121.

If your equation involving the x's is correct, then you will need to find the roots for the equation which will look like a quartic.

There is a complicated formula to solve quartics, but you can use something known as the rational root theorem to check for rational roots as well as the option of using a computer to calculate the roots straight away.

To get the polynomial, multiply both sides by (1-2x), collect terms and simplify to get a polynomial P(x) where P(x) = 0 and consider the above to get those roots.