A SECRET WEAPON FOR X

Fix for x; Peter is two times as previous as his son. Twelve yrs ago he was 4 occasions older than him. How outdated are they now?Using the square root of x2 will cancel it out. So, take the sq. root of each side. You will get x still left above on a person aspect and as well as or minus the square root of 16, four, on one other aspect. Hence, x =