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Phổ biến Word Problems >

janet is three years older than maria. The sum of their ages is 39. Find the age of each.

Lời Giải

jan e t i s t h ree ye a rs o l d er t han ma r ia . T h e s u m o f t h e i r a g es i s 39. F in d t h e a g e o f e a c h .

Lời Giải

Janet^{'} s age is : 21

Maria^{'} s age is : 18

Các bước giải pháp

Translate the problem into an equation:

x + x - 3 = 39

Giải

x, x + x - 3 = 39 : x = 21

Tìm age

Janet^{'} s age is : 21

Maria^{'} s age is : 18

Ví dụ phổ biến

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