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Popolare Word Problems >

If 3 is added to a certain number, the result is 15 less than three times the number.What is the number?

Soluzione

I f 3 i s a dd e d t o a cer t ain n u mb er, t h e res u lt i s 15 l ess t han t h ree t im es t h e n u mb er . Wha t i s t h e n u mb er ?

Soluzione

The number : 9

Fasi della soluzione

Represent the number with

x

A.T.Q.:

x + 3 = 3 x - 15

Risolvi per

x, x + 3 = 3 x - 15 : x = 9

The number : 9

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