Question

这句话什么意思啊？怎么解这道题？

Seven years ago, scott was 3 times as old as Kathy was at that time.If Scott is now 5 years older than Kathy,how old is Scott?

Answer 1

7年前，斯科特的年龄是凯西的3倍。如果现在斯科特比凯西大5岁，问斯科特现在多大?

y-7=3(x-7)
y=x+5

解方程组得y=14.5

斯科特14岁半

Answer 2

七年前,斯科特的年龄是凯西的三倍。如果斯科特现在比凯西大五岁,那么斯科特几岁了?
列方程。设凯西的年龄是X 斯科特的年龄是Y
3（X-7）=Y-7
Y-X=5 解出这个方程组就行