Help find the 3 numbers

Question

The sum of three numbers is 60. The second number is 2 times the third. The first number is 8 less than the third. What are the numbers?

Answer 1

s=2t

f=t-8

f+s+t=60

t-8 +2t +t =60

4t=68

t=17 = third number

s=34 = second number

f=9= first number