If 9 is 3 more than twice a number,find the number.
Let the number be x.
9=?+?
I want to ask Maths
2007-08-12 10:39 pm
回答 (3)
2007-08-12 10:42 pm
✔ 最佳答案
Let the number be x9 = 3 + 2x
↑ ↑
(3 more)(twice a number)
6 = 2x
x = 3
So the number is 3
2007-08-12 10:44 pm
9=3+2x
=> 9-3=2x
=> 6=2x
=> 6/2 =x
=> 3= x
=> 9-3=2x
=> 6=2x
=> 6/2 =x
=> 3= x
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