When Christian and Cynthia were married, Cynthia was 2 years younger than Christian. How old was Christian on his wedding day if 20 years ago he was twice as old as Cynthia?

Lời Giải

Lời Giải

Christian^{'} s age is : x

Các bước giải pháp

Translate the problem into an equation:

x - 20 = 2 (x - 20)

Giải

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

Tìm Christian's age

: x

Christian^{'} s age is : x

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