SOLUTION: Luis is 6 years older than Bill. In 12 years, the sum of their ages is 60. What are their present ages?

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Question 1040034: Luis is 6 years older than Bill. In 12 years, the sum of their ages is 60. What are their present ages?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
let L =Luis' age
let b = Bill's age
:
Write an equation for each statement
:
Luis is 6 years older than Bill.
L = b + 6
In 12 years, the sum of their ages is 60.
(L+12) + (b+12) = 60
L + b + 24 = 60
L + b = 60 - 24
L + b = 36
from the first equation, replace with (b+6)
(b+6) + b = 36
2b = 36 - 6
2b = 30
b = 15 yrs is Bills age
:
I'll let you find Luis' age
:
Check your solution in both statement

What are their present ages?