Find the values of the unknows
a)3/4x = 9
b)0.3x = 6
c)4x + 6 =14
d)40 - y = 22
e)(3x+1)/20 = 1/5
f)(4x-3)/3 = 1
Note:(F is like this 4x - 3
------- = 1
3
Note:(e is like this 3x + 1
-------- = 1/5
20
Maths
2009-08-03 11:26 pm
回答 (2)
2009-08-10 9:51 pm
✔ 最佳答案
a)3/4x = 93 = 9(4x)
3 = 36x
3/36 = x
x = 1/12
b)0.3x = 6
x = 6/0.3
x = 20
c)4x + 6 =14
4x = 14- 6
x = 8/4
x = 2
d)40 - y = 22
- y = 22 - 40
- y = - 18
y = 18
e)(3x+1)/20 = 1/5
3x+1 = 20/5
3x = 4- 1
x = 3/3
x = 1
f)(4x-3)/3 = 1
4x-3 = 1(3)
4x = 3+3
x = 6/4
x = 1.5
2009-08-03 11:29 pm
a) x=1/12
b) x=20
c) x=2
d) x=1
e) 3/2
b) x=20
c) x=2
d) x=1
e) 3/2
收錄日期: 2021-04-15 22:04:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090803000051KK01245