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受欢迎的 Word Problems >

The 差集 of three times a number and three is twenty-one. Find the number.

解答

T h e d i ff ere n ce o f t h ree t im es a n u mb er an d t h ree i s tw e n t y - o n e . F in d t h e n u mb er .

解答

The number : 8

求解步骤

Represent the number with

x

A.T.Q.:

3 x - 3 = 21

求解

x, 3 x - 3 = 21 : x = 8

The number : 8

流行的例子

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