Question 170797
if paul's age is p and fathers age is f
:f=33 and p=12 let x be the number of years ago the father was 4 times older than the son
:
f-x=4(p-x)

33-x=4(12-x)
:
33-x=48-4x
:
3x=15
:
{{{highlight(x=5)}}}years ago father was 4 times older