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Phổ biến Word Problems >

Andy is 8 years younger than her brother Tyler. The sum of their ages is 34. Define a variable and then write and solve an equation to find Andy’s and Tyler’s ages.

Lời Giải

A n d y i s 8 ye a rs yo u n g er t han h er b ro t h er T y l er . T h e s u m o f t h e i r a g es i s 34. De f in e a v a r iab l e an d t h e n w r i t e an d so l v e an e q u a t i o n t o f in d A n d y ’ s an d T y l er ’ s a g es .

Lời Giải

Andy^{'} s age is : 13

Tyler^{'} s age is : 21

Các bước giải pháp

Translate the problem into an equation:

x + x + 8 = 34

Giải

x, x + x + 8 = 34 : x = 13

Tìm age

Andy^{'} s age is : 13

Tyler^{'} s age is : 21

Ví dụ phổ biến

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