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Популярное Word Problems >

When Christian and Cynthia were married, Cynthia was two years younger than Christian. How old was Christian on his wedding day if 20 years ago he was twice as old as Cynthia

Решение

Wh e n C h r i s t ian an d C y n t hia w ere ma rr i e d, C y n t hia w a s tw o ye a rs yo u n g er t han C h r i s t ian . Ho w o l d w a s C h r i s t ian o n hi s w e dd in g d a y i f 20 ye a rs a g o h e w a s tw i ce a s o l d a s C y n t hia

Решение

Christian^{'} s age is : x

Шаги решения

Translate the problem into an equation:

x - 20 = 2 (x - 20)

Решите для

x, x - 20 = 2 (x - 20) : x = 20

Найдите Christian's age

: x

Christian^{'} s age is : x

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