8x - 1 = -4x + 23 what does x equal?
回答 (12)
✔ 最佳答案
8x+4x=24
12x=24
x=2
Add 4x to both side
8x + 4x - 1 = -4x + 4x + 23
12x - 1 = 23
Add 1 to both sides
12x -1 + 1 = 23 + 1
12x = 24
Divide both sided by 12
12x/12 = x = 24/12 = 2
參考: Longtime college math teacher
8x + 4x = 23 + 1
12x = 24
x = 24 / 12
x = 2
change the order ,change the sign after moving:
8x +4x = 23 +1
12x = 24
x = 24/12 = 2
8x-1= -4x+23
solution,
8x+4x= 23+1,
12x =24,
x= 24/12,
x=2
參考: internet
8x - 1 = -4x + 23
8x + 4x = 1 + 23
12x = 24
x = 24/12
x = 2
8x - 1 = -4x + 23
by transposition....
8x + 4x = 23 +1
12x = 24
x = 2
8x-1=-4x+23
12x=24
x=24/12
x=2
收錄日期: 2021-05-01 10:38:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080623071150AAKJQb3
檢視 Wayback Machine 備份