maths

2007-09-30 2:40 am
5- 4x - 17 + 7x = 0

give me the step and answer

9e + 2 = -25

give me the step and answer

回答 (2)

2007-09-30 2:46 am
✔ 最佳答案
5- 4x - 17 + 7x = 0
-12 + 3x = 0
3x = 12
x = 12 / 3
x = 4


9e + 2 = -25
9e = -27
e = -27 / 9
e = -3
2007-09-30 4:14 am
5 - 4x - 17 + 7x = 0
-4x + 7x = 17 - 5
3x = 12
x = 4


9e + 2 = -25
9e = -25 - 2
9e = -27
e = -3


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