SOLUTION: ELi is younger than Lily. The sum of their ages is 31. The difference between their ages is 3 years. How old is ELi?

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Question 929568: ELi is younger than Lily. The sum of their ages is 31. The difference between their ages is 3 years. How old is ELi?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
E%2BL=31
L-E=3
Add the equations,
E%2BL%2BL-E=34
2L=34
L=17
Then,
17-E=3
E=14