HELP SOLVE PLEASE -2x + 8 = 3(4+2x)?
回答 (9)
2009-06-10 1:40 pm
✔ 最佳答案
-2x+8=12+6x-8x=4
x=-1/2
2009-06-10 8:56 pm
- 2x + 8 = 3(4 + 2x)
- 2x + 8 = 12 + 6x
6x + 2x = 8 - 12
8x = - 4
x = - 4/8 or - 1/2
Answer: x = - 1/2
- 2(- 1/2) + 8 = 3(4 + 2[- 1/2])
1 + 8 = 3(4 - 1)
9 = 3(3)
9 = 9
- 2x + 8 = 12 + 6x
6x + 2x = 8 - 12
8x = - 4
x = - 4/8 or - 1/2
Answer: x = - 1/2
- 2(- 1/2) + 8 = 3(4 + 2[- 1/2])
1 + 8 = 3(4 - 1)
9 = 3(3)
9 = 9
2009-06-12 2:37 pm
-2x + 8 = 3(4 + 2x)
-2x + 8 = 3*4 + 3*2x
-2x + 8 = 12 + 6x
-2x - 6x = 12 - 8
-8x = 4
x = 4/(-8)
x = -1/2 (-0.5)
-2x + 8 = 3*4 + 3*2x
-2x + 8 = 12 + 6x
-2x - 6x = 12 - 8
-8x = 4
x = 4/(-8)
x = -1/2 (-0.5)
2009-06-10 9:04 pm
X= -.5
-2x + 8 = 3(4 + 2x) Multiply 3 times 4 Multiply 3 times 2x
-2x + 8 = 12 + 6x
- 8 = -8 Subtract 8 each side
-2x = 4 + 6x
- 6x = -6x Subtract -6x both sides
- 8x = 4 Equals
- x = .5 Divide each side by 8
X = -. 5
-2x + 8 = 3(4 + 2x) Multiply 3 times 4 Multiply 3 times 2x
-2x + 8 = 12 + 6x
- 8 = -8 Subtract 8 each side
-2x = 4 + 6x
- 6x = -6x Subtract -6x both sides
- 8x = 4 Equals
- x = .5 Divide each side by 8
X = -. 5
2009-06-10 8:51 pm
-2x + 8 = (3 x 4) + (3 x 2x)
-2x + 8 = 12 + 6x
-8x = 4
x = -1/2
-2x + 8 = 12 + 6x
-8x = 4
x = -1/2
2009-06-10 8:40 pm
x = -1/2
2009-06-10 8:40 pm
-2x+8=3(4+2x)
-2x+8=12+6x
-2x=4+6x
-8x=4
x=-4/8 or -1/2
-2x+8=12+6x
-2x=4+6x
-8x=4
x=-4/8 or -1/2
2009-06-10 8:39 pm
-2x + 8 = 12 + 6x
8x = -4
x = -1/2
8x = -4
x = -1/2
2009-06-10 8:39 pm
-2x+8=3(4+2x)
expand brackets
-2x+8=12+6x
plus -2x to both sides
8=12+8x
minus 12 on both sides
-4=8x
therefore.... -4 devided by 8
which equals negative half... (-1/2)
expand brackets
-2x+8=12+6x
plus -2x to both sides
8=12+8x
minus 12 on both sides
-4=8x
therefore.... -4 devided by 8
which equals negative half... (-1/2)
收錄日期: 2021-05-01 12:27:24
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090610053354AAtcGma