SOLUTION: Mike is two years younger than his sister Sarah. If in 3 years their ages add up to 48, what are Mike and Sarah's present ages

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Mike is two years younger than his sister Sarah. If in 3 years their ages add up to 48, what are Mike and Sarah's present ages      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 783921: Mike is two years younger than his sister Sarah. If in 3 years their ages add up to 48, what are Mike and Sarah's present ages
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Mike is two years younger than his sister Sarah.
M = S - 2
If in 3 years their ages add up to 48.
(M + 3) + (S + 3) = 48
Replace M with S - 2
(S - 2 + 3) + (S + 3) = 48
Remove brackets
S - 2 + 3 + S + 3 = 48
Collect like terms
2S + 4 = 48
2S = 48 - 4
2S = 44
S = 22
Current ages:
Mike is 20 years old
Sarah is 22 years old
Hope this helps.
;-)