Jamall is 10 years older than his cousin Trina. The sum of their ages is four years less than three times Trina’s age. What are Trina and Jamall’s ages

Question

write and equation and let x = Trina’s age

Answer 1

J=T+10 => J-T=10

J+T=3T - 4 => J-2T = -4

Subtract the 2nd equation from the first: T=14

J=24

Check: 24+14= 38 = 42-4