SOLUTION: The mother is 6 years more than three times older than her son four years ago, she was 5 times older as her son. How old is her son now?

Question 789879: The mother is 6 years more than three times older than her son four years ago, she was 5 times older as her son. How old is her son now?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
The mother is 6 years more than three times older than her son
M = 6 + 3S
four years ago, she was 5 times older as her son.
M - 4 = 5(S - 4)
Substitute M with 6 + 3S from equation above.
6 + 3S - 4 = 5(S - 4)
6 + 3S - 4 = 5S - 20
Collect like terms.
2S = 22
S = 11
Her son's current age is 11 years old.
Hope this helps.
:-)
RELATED QUESTIONS
The mother is 6 years more than three times older than her son. Four years ago, she was 5 (answered by josmiceli)

A mother was 6 years ago four times as old as her son, but now she is only three times... (answered by ankor@dixie-net.com)

A mother is 20 years older than her son. Ten years ago she was 3 times as old as her son... (answered by lwsshak3)

Zelma is 21 years older than her son. Two years ago she was four times his age. How Old... (answered by ewatrrr)

Zelma is eighteen years older than her son. She was three times as old as he was one year (answered by junior403)

zelma is eighteen years older than her son. she was three times as old as he was one... (answered by ptaylor)

Zelma is eighteen years older than her son. She was three times as old as he was one year (answered by josmiceli)

Zelma is eighteen years older than her son. She was three times as old as he was one year (answered by Earlsdon)

zelma is eighteen years older than her son. she was three times as old as he was one year (answered by richwmiller)