Answer:
s = Susan's current age
t = Tom's current age
Susan is 3 years older than Tom
s = t + 3 {equation 1}
Two years ago Susan was twice as old as Tom
s - 2 = 2(t-2)
s -2 = 2t - 4
s = 2t -2 {equation 2}
Since s = t + 3 and s = 2t-2 then...
t +3 = 2t - 2
5 = t
Tom is 5 years old
s = t + 3 = 8
Susan is 8 years old
Explanation:
