SOLUTION: Lisa is 9 years old. Marcus is 33 years old. How old will Lisa be when Marcus is three times as old as she is.

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Lisa is 9 years old. Marcus is 33 years old. How old will Lisa be when Marcus is three times as old as she is.      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 593811: Lisa is 9 years old. Marcus is 33 years old. How old will Lisa be when Marcus is three times as old as she is.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
M = L + 24 ___ M - 24 = L

M = 3L ___ L + 24 = 3L ___ 12 = L