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人気のある Word Problems >

Kevin is 6 years older than Timothy, but 4 years ago Kevin was twice as old as Timothy, how old is kevin right now

解

Ke v in i s 6 ye a rs o l d er t han T im o t h y, b u t 4 ye a rs a g o Ke v in w a s tw i ce a s o l d a s T im o t h y, h o w o l d i s k e v in r i g h t n o w

解

Kevin^{'} s age is : 16

解答ステップ

Translate the problem into an equation:

x - 4 = 2 (x - 6 - 4)

x

を解く

x - 4 = 2 (x - 6 - 4) : x = 16

Kevin^{'} s age is : 16

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