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人気のある Word Problems >

Alan is 2 years older than Noelle. In 3 years the sum of their ages will be 72. How old is Alan now?

解

A l an i s 2 ye a rs o l d er t han N oe ll e . I n 3 ye a rs t h e s u m o f t h e i r a g es w i ll b e 72. Ho w o l d i s A l an n o w ?

解

Alan^{'} s age is : 34

解答ステップ

Translate the problem into an equation:

x + 3 + x - 2 + 3 = 72

x

を解く

x + 3 + x - 2 + 3 = 72 : x = 34

Alan^{'} s age is : 34

人気の例

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