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受欢迎的 Word Problems >

Two times the sum of a number and 5 is equal to 7

解答

Tw o t im es t h e s u m o f a n u mb er an d 5 i s e q u a l t o 7

解答

The number : - 1 \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{3}{2}

将假分式转换为带分数:

\frac{3}{2} = 1 \frac{1}{2}

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

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