d = Dean's age and e = Emily's age
4d = e
2(d+6) = (e+6)
Substitute 4d for e in second equation and solve for d. Insert that value into the first equation and solve for e. Check by inserting both values into the second equation.
Dean is 1/4 that of Emily. In six years Emily will be two times older than Dean. How old is Dean?
1 answer
1 answer