Question 997226
let x = jill's age.
then x + 28 = bill's age.
let y = the number of years it will take for bill's age to be equal to 3 * jill's age.


you get (x + 28) + y = 3 * (x + y)


since x = 0, the equation becomes:


28 + y = 3 * y


subtract y from both sides of this equation to get:


28 = 2 * y


divide both sides of this equation by 2 to get:


y = 14


in 14 years, bill's age will be 3 * jill's age.


bill will be 28 + 14 = 42
jill will be 14


3 * 14 = 42


solution is:


bill will be 42
jill will be 14.