SOLUTION: Jack is 2 times as old as Lacy. 8 years from now the sum of their ages will be 46 . How old are they now?

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Question 661519: Jack is 2 times as old as Lacy. 8 years from now the sum of their ages will be 46 . How old are they now?
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
x = jack
y = lacy
x = 2y
46 = (x+8)+(y+8)
Substitute x
46 = 2y+8+y+8
46 = 3y + 16
30 = 3y
y=10
x=2(10)=20
Jack is 20, Lacy is 10