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人気のある Word Problems >

Edwin's father is twice as old as Edwin. Five years ago, the sum of their ages was 59 years old. Calculate Edwin's age.

解

E d w i n^{'} s f a t h er i s tw i ce a s o l d a s E d w in . F i v e ye a rs a g o, t h e s u m o f t h e i r a g es w a s 59 ye a rs o l d . C a l c u l a t e E d w i n^{'} s a g e .

解

Edwin^{'} s age is : 23

解答ステップ

Translate the problem into an equation:

x - 5 + 2 x - 5 = 59

x

を解く

x - 5 + 2 x - 5 = 59 : x = 23

Edwin^{'} s age is : 23

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