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math word problems HELP?
Here:
Adam is 5 years younger than Eve. In one year eve will become 3 times as old as adam was 4 years ago. Find their ages now
Use elimination process
I want to know how to get the answer not the answer it self
1 Answer
- 8 years agoFavorite Answer
A = Adam. E = Eve.
A + 5 = E and (A - 4) x 3 = E + 1
If you exchange E with A+5 in the second formula you'll get:
3A-12 = A + 6 -->
2A = 18
A = 9.
So Adam should be 9. That means Eve should be 9 + 5 = 14 years old.
Let's check the answer.
9 + 5 = 14. Correct.
(9 - 4) x 3 = 14 + 1 -->
15 = 15. Correct!
So Adam is 9 years old and Eve is 14 years old.