1 .4x + 5 =2x + 1
2 .3 + x/2 = x
3 .-11+ x/65=7
4 .3x/2+3=x/3+2
5該T_T
英文方程式3
2014-08-12 10:23 pm
回答 (3)
2014-08-17 2:51 am
✔ 最佳答案
1. 4x+5=2x+14x-2x=1-5
2x =-4
x =-2
2. 3+(x/2)=x
6+x =2x
x =6
3. -11+(x/65)=7
-715+x =455
x =1170
4. (3x/2)+3=(x/3)+2
9x+18 =2x+12
9x-2x =12-18
7x =-6
x =-6/7
2014-08-13 3:14 am
4. 3x/2 + 3 = x/3 + 2
6(3x/2 + 3) = 6(x/3 + 2)
9x + 18 = 2x + 12
9x - 2x = 12 - 18
7x = -6
x = -6/7
6(3x/2 + 3) = 6(x/3 + 2)
9x + 18 = 2x + 12
9x - 2x = 12 - 18
7x = -6
x = -6/7
2014-08-13 3:02 am
1.4x+5 = 2x +1
4x+5-1=2x
4x+4=2x
4=2x-4x
4=-2x
4/-2=x
x=-2
2..3 + x/2 = x
3=x-x/2
3=x/2
x=6
3.x/65=18
x =18 x65
x =117000
2014-08-12 19:03:35 補充：
sorry 3 is1170
收錄日期: 2021-04-20 15:14:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140812000051KK00094