i have some 問題 pls help me(要有式)
1.Slove 7(x-1)-5(2-x)=3
2.4(x-4)=2x-4
3.6(x+3)=2(6x+3)
4.y/3+10=6y-1有3分之1
5.x+6=(26-x)÷3
help me pls!(p.6升f.1題)
2007-08-06 6:19 am
回答 (3)
2007-08-06 6:26 am
✔ 最佳答案
1.7x-7-10+5x = 3
12x = 20
x = 5/3
2.
4x-16 = 2x-4
2x = 12
x = 6
3.
6x+18 = 12x+6
6x = 12
x = 2
4.y/3+10=6y-1
11 = 17y/3
y=33/17 = 1 16/17
5.x+6=(26-x)÷3
3x+18 = 26-x
4x = 8
x = 2
2007-08-05 22:42:22 補充：
看錯了題目.y/3 10=6y-1 1/311又1/3 = 17y/334 = 17yy = 2
2007-08-06 8:28 pm
1.Solve 7(x-1)-5(2-x)=3
7x-7-10+5x=3
12x=20
x=1.66666666
2.4(x-4)=2x-4
4x-16=2x-4
2x=12
x=6
3.6(x+3)=2(6x+3)
6x+18=12x+6
12=6x
x=2
4.y/3+10=6y-1有3分之1
y/3+10=6y-4/3
y+30=18y-4
34=17y
y=2
5.x+6=(26-x)÷3
3x+18=26-x
4x=8
x=2
7x-7-10+5x=3
12x=20
x=1.66666666
2.4(x-4)=2x-4
4x-16=2x-4
2x=12
x=6
3.6(x+3)=2(6x+3)
6x+18=12x+6
12=6x
x=2
4.y/3+10=6y-1有3分之1
y/3+10=6y-4/3
y+30=18y-4
34=17y
y=2
5.x+6=(26-x)÷3
3x+18=26-x
4x=8
x=2
參考: me
2007-08-06 6:28 am
1. 7(x-1)-5(2-x)=3
7x-7-10+5x=3
12x=20
x=5/3
2. 4(x-4)=2x-4
4x-16=2x-4
2x=12
x=6
3. 6(x+3)=2(6x+3)
6x+18=12x+6
-6x = -12
x=2
4. y/3+10=6y-1有3分之1
y/3 - 6y=-10 - 4/3
y-18y=-30-4
-17y=-34
y=2
5. x+6=(26-x)÷3
3x+18=26-x
4x = 8
x=2
7x-7-10+5x=3
12x=20
x=5/3
2. 4(x-4)=2x-4
4x-16=2x-4
2x=12
x=6
3. 6(x+3)=2(6x+3)
6x+18=12x+6
-6x = -12
x=2
4. y/3+10=6y-1有3分之1
y/3 - 6y=-10 - 4/3
y-18y=-30-4
-17y=-34
y=2
5. x+6=(26-x)÷3
3x+18=26-x
4x = 8
x=2
參考: myself
收錄日期: 2021-04-13 15:29:40
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https://hk.answers.yahoo.com/question/index?qid=20070805000051KK04800