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Cody is 2 times as old as Lacy. 10 years from now the sum of their age will be 62. How old are they now?

解答

Cody is 2 times as old as Lacy. 10 years from now the sum of their age will be 62. How old are they now?

解答

Lacy^{'} s age is : 14

Cody^{'} s age is : 28

求解步骤

Translate the problem into an equation:

2 x + 10 + x + 10 = 62

求解

x, 2 x + 10 + x + 10 = 62 : x = 14

找到 age

Lacy^{'} s age is : 14

Cody^{'} s age is : 28

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