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Phổ biến Word Problems >

If the hiệu of a number and five is doubled, the result is nine more than the number. Find the number

Lời Giải

I f t h e d i ff ere n ce o f a n u mb er an d f i v e i s d o u b l e d, t h e res u lt i s nin e m ore t han t h e n u mb er . F in d t h e n u mb er

Lời Giải

The number : 19

Các bước giải pháp

Represent the number with

x

A.T.Q.:

(x - 5) \cdot 2 = 9 + x

Giải

x, (x - 5) \cdot 2 = 9 + x : x = 19

The number : 19

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