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受欢迎的 Word Problems >

If 72 is added to a number, the result is 42 less than three times the number. Find the number

解答

I f 72 i s a dd e d t o a n u mb er, t h e res u lt i s 42 l ess t han t h ree t im es t h e n u mb er . F in d t h e n u mb er

解答

The number : 57

求解步骤

Represent the number with

x

A.T.Q.:

x + 72 = 3 x - 42

求解

x, x + 72 = 3 x - 42 : x = 57

The number : 57

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