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受欢迎的 Word Problems >

kevin is 3 times as old a daniel . 4 years ago, kevin was 5 times as old as daniel . how old is kevin now ?

解答

k e v in i s 3 t im es a s o l d a d ani e l . 4 ye a rs a g o, k e v in w a s 5 t im es a s o l d a s d ani e l . h o w o l d i s k e v in n o w ?

解答

Kevin^{'} s age is : 24

求解步骤

Translate the problem into an equation:

3 x - 4 = 5 (x - 4)

求解

x, 3 x - 4 = 5 (x - 4) : x = 8

找到 Kevin's age

: 24

Kevin^{'} s age is : 24

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