Last year,mr.Lee was three times as old as his daughter and 26 years older than her.How old is mr.Lee now?
let x be his daughter age in last year,
*please have 解釋!!
*the first step must be______-______=______
- 1 decade agoFavorite Answer
x= Mr.Lee's daughter's age last year
y= Mr.Lee's age last year
3x=y.........eq1 ( 3 times as old as his daughter)
y=x+26......eq2 (26years older than her)
Sub eq1 into eq2,
Mr.Lee's age now
=3*13+1 ( 3 times as old as his daughter and add one more year for his age this year)