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受欢迎的 Word Problems >

twice the 差集 of a number and 5 equals 7

解答

tw i ce t h e d i ff ere n ce o f a n u mb er an d 5 e q u a l s 7

解答

The number : 8 \frac{1}{2}

求解步骤

Represent the number with

x

A.T.Q.:

2 (x - 5) = 7

求解

x, 2 (x - 5) = 7 : x = \frac{17}{2}

将假分式转换为带分数:

\frac{17}{2} = 8 \frac{1}{2}

The number : 8 \frac{1}{2}

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