If the father is 3 times the age of the son (3x=x) x=son, and 6 years ago it was 5x=x, how old is the son today?
2006-09-14 15:20:50 · 4 answers · asked by Anonymous in Education & Reference ➔ Trivia
f=father
s=son
f=3s
f-6=5(s-6)
3s-6=5(s-6)
3s=5(s-6)+6
s=12
Today the son is 12 and father 36.
Six years ago the son was 6 and father 30.
2006-09-14 15:35:44 · answer #1 · answered by yanks28 2 · 1⤊ 0⤋
I don't know. I can't figure it out. I sucked in algebra anyways.
x*5+6=x*3
5x=3x-6
2x=-6
2x/2x=x -6/2=-3 x=-3 I don't know, I'm stumped.
Thanx Yanks, this one was driving me mad!
2006-09-14 23:46:28 · answer #2 · answered by i_am_frog 2 · 1⤊ 0⤋
i only konw his birthday is 25.12.****
2006-09-14 22:29:33 · answer #3 · answered by gary 2 · 0⤊ 0⤋
15??? I dunno would have helped if you would have told the fathers age!
2006-09-14 22:23:33 · answer #4 · answered by Just_me 3 · 0⤊ 0⤋