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受欢迎的 Word Problems >

gina is 4 years yunger than twice David's age. Gina is 18 . How old is davis

解答

g ina i s 4 ye a rs y u n g er t han tw i ce D a v i d^{'} s a g e . G ina i s 18 . Ho w o l d i s d a v i s

解答

David^{'} s age is : \frac{3}{7}

Gina^{'} s age is : 18

求解步骤

Translate the problem into an equation:

42 x = 18

求解

x, 42 x = 18 : x = \frac{3}{7}

找到 age

David^{'} s age is : \frac{3}{7}

Gina^{'} s age is : 18

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