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's age in last year.
The first column must be ______-______=______
- Audrey HepburnLv 71 十年前最愛解答
Let x be his daughter's age last year.
From the given condition,
3x = x + 26
2x = 26
x = 13
So, age of Mr. Lee last year = 13 + 26 = 39
So, Mr. Lee is 39 + 1 = 40 years old this year.
2007-08-02 14:28:30 補充：
3x - (x 26) = 02x = 26x = 13資料來源： Myself~~~