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Carlo is now 10 years older than Edison. In 5 years, he will be twice as old as Edison's age. What are their ages?

解答

Carlo is now 10 years older than Edison. In 5 years, he will be twice as old as Edison's age. What are their ages?

解答

Carlo^{'} s age is : 15

Edison^{'} s age is : 5

求解步骤

Translate the problem into an equation:

x + 5 = 2 (x - 10 + 5)

求解

x, x + 5 = 2 (x - 10 + 5) : x = 15

找到 age

Carlo^{'} s age is : 15

Edison^{'} s age is : 5

流行的例子

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