I want to ask Maths

👨🏻‍🏫 學術台數學

135325

2007-08-12 10:39 pm

If 9 is 3 more than twice a number,find the number.

Let the number be x.

9=?+?

回答 (3)

WaiChing

2007-08-12 10:42 pm

✔ 最佳答案

Let the number be x

9 = 3 + 2x
↑ ↑
(3 more)(twice a number)

6 = 2x

x = 3

So the number is 3

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cyt3698

2007-08-12 11:26 pm

9=?+?

9 = 3 + 2x

2x = 9 -3

x = 6/2

x = 3

so the number is 3

參考: me

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Anita

2007-08-12 10:44 pm

9=3+2x

=> 9-3=2x

=> 6=2x

=> 6/2 =x

=> 3= x

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