what is 3-2x=9-5x???????????????????????????????????????

2008-10-02 10:31 am

回答 (9)

2008-10-02 10:56 am
✔ 最佳答案
5x-2x=9-3
3x=6
x=6/3
x=2
2008-10-02 5:37 pm
3 - 2x = 9 - 5x
3 - 2x + 2x = 9 - 5x + 2x
3 = 9 - 3x
3 - 9 = 9 - 3x - 9
-6 = -3x
6 = 3x
2 = x
x = 2
2008-10-02 5:36 pm
x=2
seriously. you need help for this?
2008-10-02 5:36 pm
3 - 2x = 9 - 5x
3 = 9 - 3x . You move the - 2x to the other side
-6 = -3x . You move the 9 to the other side by subtracting it
x = - 6 divided by -3
x = 2
2008-10-02 5:59 pm
3 - 2x = 9 - 5x
5x - 2x = 9 - 3
3x = 6
x = 6/3
x = 2
2008-10-02 5:37 pm
Isolate the variables:

3 - 3 - 2x + 5x = 9 - 3 - 5x + 5x
3x = 6
x = 2

Check:

3 - 2(2) ? 9 - 5(2)
3 - 4 ? 9 - 10
-1 = -1
2008-10-04 3:20 am
- 2x + 5x = 9 - 3
3x = 6
x = 2
2008-10-02 5:41 pm
Dude this is really easy,
but do your own homework.
2008-10-02 5:35 pm
how about do your own damn homework...?


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