8x - (4x + 5) = 11
The solution is x =
Can anyone help me solve this?
2009-02-14 4:31 pm
回答 (3)
2009-02-14 4:38 pm
✔ 最佳答案
x=4 
2009-02-15 12:36 am
First not that -(4x+5) is the same as (-1)(4x+5). By the distributive rule,
(-1)(4x+5) = -4x - 5
8x - (4x + 5) = 11
8x - 4x - 5 = 11
4x = 16
x = 4
(-1)(4x+5) = -4x - 5
8x - (4x + 5) = 11
8x - 4x - 5 = 11
4x = 16
x = 4
2009-02-15 12:40 am
8x - (4x + 5) = 11
8x - 4x - 5 = 11
8x - 4x = 11 + 5
4x = 16
x = 16/4
x = 4
8x - 4x - 5 = 11
8x - 4x = 11 + 5
4x = 16
x = 16/4
x = 4
收錄日期: 2021-05-01 12:04:09
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