Sam is 7 years older than Alex and Alex is 1 year older than Chris. If the sum of their ages is 66, find each person's age.
S = A + 7
C = A - 1
A + S + C = A + (A+7) + (A-1) = 66
Solve for A, then the others.
C = A - 1
A + S + C = A + (A+7) + (A-1) = 66
Solve for A, then the others.