SOLUTION: Christian is 3 times as old as Marie. Marie is 12 years younger than Christian. How old is Christian?

Question 1109788: Christian is 3 times as old as Marie. Marie is 12 years younger than Christian. How old is Christian?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Christian is 3 times as old as Marie.
c = 3m
Marie is 12 years younger than Christian.
m = c - 12
Replace c with 3m, from the first statement
m = 3m - 12
m - 3m = -12
-2m = -12
m = -12/-2
m = +6 is Marie's age
:
How old is Christian?
c = 3(6)
c = 18 is Christian's age
:
:
Check solutions in the 2nd statement
" Marie is 12 years younger than Christian."
6 = 18 - 12
RELATED QUESTIONS
Rian is 4 years older than Christian. Twelve years ago Rian was two times as old as... (answered by mike69)

Christian is twice as old as Taskie while Dark is 24 years younger than Christian. If... (answered by josgarithmetic,MathTherapy)

When Christian and Cynthia were married, Cynthia was two years younger than Christian.... (answered by ikleyn)

1) CHRISTIAN IS 32 YEARS OLD AND HIS SON IS 5 YEARS OLD. HOW MANY YEARS FROM NOW WILL... (answered by srinivas)

Anton is twice as old as Marie. Eight years ago, Anton was eight years younger than three (answered by Maths68)

megan is four years older than jacob, who is ten years older than christian. the sum of... (answered by ewatrrr)

Anton is twice as old as his wife Marie. Eight years ago, Anton was eight years younger... (answered by stanbon)

Marie is seven years older than Mathew. Twelve years ago, Marie was half as old as Mathew (answered by rapture,MathTherapy)

This year Lyann is three times as old as Christian. if x represents Christians age... (answered by josmiceli)