3(x+2)=4x-2
x=??
Thz!!
F.1 Maths question 3(x+2)=4x-2
2012-10-23 12:37 am
回答 (8)
2012-10-23 12:56 am
✔ 最佳答案
3(x+2)=4x-2x=??
解:
3(x+2) = 4x - 2
3x + 6 = 4x - 2
4x - 3x = 8
x = 8
7(x-10)=4(x-9)-7
x=??
解:
7(x-10) = 4(x-9) - 7
7x - 70 = 4x - 36 - 7
3x = 27
x = 9
參考: 自己
2012-10-23 11:17 pm
3(x+2)=4x-2
3(x+2) = 4x - 2
3x + 6 = 4x - 2
4x - 3x = 8
x = 8
7(x-10)=4(x-9)-7
x=??
Ans;7(x-10) = 4(x-9) - 7
7x - 70 = 4x - 36 - 7
3x = 27
x = 9
3(x+2) = 4x - 2
3x + 6 = 4x - 2
4x - 3x = 8
x = 8
7(x-10)=4(x-9)-7
x=??
Ans;7(x-10) = 4(x-9) - 7
7x - 70 = 4x - 36 - 7
3x = 27
x = 9
參考: me
2012-10-23 4:26 pm
3(x+2)=4x-2
3x+6=4x-2
x=8
7(x-10)=4(x-9)-7
7x-70=4x-45-7
3x=18
x=6
3x+6=4x-2
x=8
7(x-10)=4(x-9)-7
7x-70=4x-45-7
3x=18
x=6
2012-10-23 3:51 am
3(x+2)=4x-2
3x+6=4x-2
x=8
7(x-10)=4(x-9)-7
7x-70=4x-36-7
3x=27
x=9
3x+6=4x-2
x=8
7(x-10)=4(x-9)-7
7x-70=4x-36-7
3x=27
x=9
2012-10-23 3:14 am
1) 3(x+2)=4x-2
3x+6=4x-2
3x-4x=-2-6
-x=-8
x=8
2) 7(x-10)=4(x-9)-7
7x-70=4x-36-7
7x-4x=70-36-7
3x=27
x=9
3x+6=4x-2
3x-4x=-2-6
-x=-8
x=8
2) 7(x-10)=4(x-9)-7
7x-70=4x-36-7
7x-4x=70-36-7
3x=27
x=9
2012-10-23 1:33 am
Questions and Answers :
Find the unknowns of the following expressions.
1) 3(x+2) = 4x-2
3x+6 = 4x-2
-x = -2-6
-x = -8
x = 8 #
2) 7(x-10) = 4(x-9)-7
7x-70 = 4x-36-7
3x = -43+70
3x = 27
x = 9 #
Find the unknowns of the following expressions.
1) 3(x+2) = 4x-2
3x+6 = 4x-2
-x = -2-6
-x = -8
x = 8 #
2) 7(x-10) = 4(x-9)-7
7x-70 = 4x-36-7
3x = -43+70
3x = 27
x = 9 #
2012-10-23 1:01 am
1. 3（x+2)=4x-2
3x+6=4x-2
6+2=4x-3x
8=x
x=8
2. 7(x-10)=4(x-9)-7
7x-70=4x-36-7
7x-4x= -36-7+70
3x=27
x=9
3x+6=4x-2
6+2=4x-3x
8=x
x=8
2. 7(x-10)=4(x-9)-7
7x-70=4x-36-7
7x-4x= -36-7+70
3x=27
x=9
收錄日期: 2021-04-13 19:03:55
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