SOLUTION: molly is 4 years younger than heidi. in 3 years, heidi will be twice as old as molly. how old are they now?

Question 30272: molly is 4 years younger than heidi. in 3 years, heidi will be twice as old as molly. how old are they now?
Answer by Paul(988) (Show Source): You can put this solution on YOUR website!
Heidi's age = x
Molly's age = x-4
In three years Molly's age = x-4+3
In three years Heidi's age = x+3

2x-2=x+3

x=5

5-4=1





Hence, Heidi is 5 years old and Molly is 1 year old.

Paul. 

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