1. 2x+3+(3x-2)=6
2. 2x+3-(3x-2)=6
3. 3(x-1)-4=2-(x+1)
4. 0.2x-3=-0.3x+1
列式 thx
方程式中一升中二
2009-08-31 11:46 pm
回答 (3)
2009-09-01 12:04 am
✔ 最佳答案
1. 2x + 3 + (3x - 2) = 6
2x + 3 + 3x - 2 = 6
5x = 5
x = 1 ...... (答案)
2.
2x + 3 - (3x - 2) = 6
2x + 3 - 3x + 2 = 6
-x = 1
x = -1 ...... (答案)
3.
3(x - 1) - 4 = 2 - (x + 1)
3x - 3 - 4 = 2 - x - 1
4x = 8
x = 2 ...... (答案)
4.
0.2x - 3 = -0.3x + 1
0.2x + 0.3x = 1 + 3
0.5x = 4
x = 8 ...... (答案)
2009-09-01 12:06 am
題目1:
2x+3+(3x-2)=6
5x+1=6
x=1
題目2:
2x+3-(3x-2)=6
-x+5=6
x=-1
題目3:
3(x-1)-4=2-(x+1)
3x-3-4 =2-x-1
4x =8
x=2
題目4:
0.2x-3=-0.3x+1
0.5x=4
x=8
2x+3+(3x-2)=6
5x+1=6
x=1
題目2:
2x+3-(3x-2)=6
-x+5=6
x=-1
題目3:
3(x-1)-4=2-(x+1)
3x-3-4 =2-x-1
4x =8
x=2
題目4:
0.2x-3=-0.3x+1
0.5x=4
x=8
2009-09-01 12:06 am
第一題個六呢咁- -
收錄日期: 2021-04-13 16:49:39
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