solve for X, 5x-3=2x+9?

2009-07-08 5:56 am

回答 (5)

2009-07-08 9:17 am
✔ 最佳答案
3x=12
x=4
2009-07-08 1:00 pm
5x - 3 = 2x + 9
5x - 2x = 9 + 3
3x = 12
x = 12/3 or 4

Answer: x = 4

Proof:
5(4) - 3 = 2(4) + 9
20 - 3 = 8 + 9
17 = 17
2009-07-08 1:04 pm
5x=2x+9+3

5x=2x+12

5x-2x=12

3x=12

x=4
2009-07-08 1:04 pm
5x - 3 = 2x + 9
5x - 2x = 3 + 9
3x = 12
x = 12/3
x = 4
2009-07-08 12:59 pm
5x-2x = 9+3
3x = 12
x = 4


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