art's age is two thirds cal's age, and bob is three years older than art. the sum of their three ages is 45. find the age of each one
C = 3/2A, B = A+3
A + 3/2A + (A+3) = 45
Solve for A, then B and C.
A + 3/2A + (A+3) = 45
Solve for A, then B and C.