J is 8 years older than E. In 5 years the sum of their ages will be 78. How old is J now

Question

J is 8 years older than e. In 5 years the sum of their ages will be 78. How old is j now

Answer 1

J = e+8 ---> J - 8 = e

 

J + J-8 + 10 = 78

 

2j + 2 = 78

 

2j = 76

 

j = 38

 

38 and 30