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Phổ biến Word Problems >

The sum of twice a number and one is twenty one.

Lời Giải

T h e s u m o f tw i ce a n u mb er an d o n e i s tw e n t y o n e .

Lời Giải

The number : 10

Các bước giải pháp

Represent the number with

x

A.T.Q.:

2 x + 1 = 21

Giải

x, 2 x + 1 = 21 : x = 10

The number : 10

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