2n+7(-2) = -2 How to solve n?

2008-01-31 9:17 am
更新1:

Thank you all for the overwhelming response so promptly!!

回答 (12)

2008-01-31 3:32 pm
✔ 最佳答案
2n - 14 = - 2
2n = 12
n = 6
2008-01-31 9:23 am
Follow along friend.
2n + 7(-2) = -2
2n + (-14) = -2
2n - 14 = -2
2n - 14 + 14 = -2 + 14
2n = 12
n = 6
2008-01-31 9:32 am
2n + 7(-2) = -2
2n + 7*(-2) = -2
2n + (-14) = -2
2n - 14 = -2
2n = -2 + 14
2n = 14 - 2
2n = 12
n = 12/2
n = 6
2008-01-31 9:29 am
2n+7(-2) = -2

First multiply 7*-2 = -14
2n - 14 = -2

No bring x on one side and constants on the other side. I.e. Take - 14 on the other side
2n = 14 -2
2n = 12
n = 6
2008-01-31 9:27 am
2n+7(-2) = -2
2n-14 = -2
2n= -2+14
2n=12
n=6
2008-01-31 9:22 am
2n-14 = -2
2n = -2+14
2n = 12
n = 12/2
n = 6
2008-01-31 9:20 am
2n+7(-2) = -2
2n-14 = -2
2n= -2+14
2n=12
n=6
*
2008-01-31 9:21 am
2n+7(-2) = -2
2n-14=-2
2n=-2+14
2n= 12
n=6
2016-12-11 12:25 am
7(2n - 2) = (3n + 2) + 3 14n - 14 = 3n + 2 + 3 11n = 19 n = 19/11 answer: n = 19/11 or one million 8/11 information: 7(2[19/11]] - 2) = (3[19/11] + 2) + 3 7(38/11 - 2) = 57/11 + 2 + 3 266/11 - 14 = 57/11 + 5 24 2/11 - 14 = 5 2/11 + 5 10 2/11 = 10 2/11
2008-01-31 1:28 pm
2n+7(-2) = -2

2n-14 = -2

2n = 14-2

2n = 12

n = 12/2 = 6


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