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Phổ biến Word Problems >

Seven times a number is 30 greater than the sum of twice the number and 5 . What is the number?

Lời Giải

S e v e n t im es a n u mb er i s 30 g re a t er t han t h e s u m o f tw i ce t h e n u mb er an d 5 . Wha t i s t h e n u mb er ?

Lời Giải

The number : 7

Các bước giải pháp

Represent the number with

x

A.T.Q.:

7 x = 30 + (2 x + 5)

Giải

x, 7 x = 30 + (2 x + 5) : x = 7

The number : 7

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