SOLUTION: Jill is 12 years older than jack. IN 8 yeras she will be three times his age. How old is Jack?

Question 829538: Jill is 12 years older than jack. IN 8 yeras she will be three times his age. How old is Jack?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Let be Jill's age.
Let be Jack's age.
1.
In 8 years, Jill will be A+8, I assume you mean 3 times his age right now (because otherwise it doesn't work)
2.
Substitute eq. 1 into eq. 2,

From eq. 1,

Jack is 10 and Jill is 22 years old.
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