Question 265176
jen is 6 years older than sue. in 4 years, she will be twice as old as sue was 5 years ago. Find their ages now

Let J be Jen's age and S Sue's age.  Then:

1.) J = S + 6
2.) J + 4 = 2*(S - 5)

Substitute S + 6 from 1.) for J in  2.):

(S + 6) + 4 = 2*(S - 5)

Solve the above for S then calculate J = S + 6.