解方程
1.3分之e+2=10
2.2y+3=18y
3.4x+12=2(3x-5)
4.k分之24=4
要有過程
急!!!有數學唔識做？？
2007-08-26 10:11 am
回答 (5)
2007-08-26 10:18 am
✔ 最佳答案
(1)(e+2)/3=10
e+2=10*3
e+2-2=30-2
e=28
(2)
2y+3=18y
3+2y-2y=18y-2y
16y=3
y=3/16
(3)
4x+12=6x-10
4x+12+10=6x-10+10
22+4x-4x=6x-4x
2x=22
x=11
(4)
24/k=4
24=4k
k=6
參考: me
2007-08-27 5:42 am
(1)
(e+2)/3=10
e+2=10*3
e+2-2=30-2
e=28
(2)
2y+3=18y
3+2y-2y=18y-2y
16y=3
y=3/16
(3)
4x+12=6x-10
4x+12+10=6x-10+10
22+4x-4x=6x-4x
2x=22
x=11
(4)
24/k=4
24=4k
k=6
(e+2)/3=10
e+2=10*3
e+2-2=30-2
e=28
(2)
2y+3=18y
3+2y-2y=18y-2y
16y=3
y=3/16
(3)
4x+12=6x-10
4x+12+10=6x-10+10
22+4x-4x=6x-4x
2x=22
x=11
(4)
24/k=4
24=4k
k=6
參考: 我既見解~希望幫到你
2007-08-26 10:25 am
1.e/3+2=10
e/3=10-2
e/3=8
e=8 x 3
e=24
2.2y+3=18y
3=18y-2y
3=16y
3/16=y
y=3/16
3. 4x+12=2(3x-5)
4x+12=6x-10
4x+12+10=6x
4x+22=6x
22=2x
11=x
x=11
4. 24/k =4
24=4 x k
24=4k
k=6
e/3=10-2
e/3=8
e=8 x 3
e=24
2.2y+3=18y
3=18y-2y
3=16y
3/16=y
y=3/16
3. 4x+12=2(3x-5)
4x+12=6x-10
4x+12+10=6x
4x+22=6x
22=2x
11=x
x=11
4. 24/k =4
24=4 x k
24=4k
k=6
參考: Myself
2007-08-26 10:22 am
1. e+2 / 3 = 10
--> e+2 = 3 x 10
--> e = 30 - 2
--> e = 28
2. 2y + 3 = 18y
--> 3 = 18y - 2y
--> 3 = 16y
--> y = 16/3
--> y = 5 1/3
3. 4x + 12 = 2 (3x - 5)
--> 4x + 12 = 2 (3x) - 2 (5)
--> 4x + 12 = 6x - 10
--> 12 + 10 = 6x - 4x
--> 22 = 2x
--> x = 11
4. 24/k = 4
--> 24 = 4 x k
--> k = 24/4
--> k = 6
2007-08-26 02:25:46 補充：
2. 2y 3 = 18y-- 3 = 18y - 2y-- 3 = 16y-- y = 3/16一時手快, 出錯O左, 唔好意思~
--> e+2 = 3 x 10
--> e = 30 - 2
--> e = 28
2. 2y + 3 = 18y
--> 3 = 18y - 2y
--> 3 = 16y
--> y = 16/3
--> y = 5 1/3
3. 4x + 12 = 2 (3x - 5)
--> 4x + 12 = 2 (3x) - 2 (5)
--> 4x + 12 = 6x - 10
--> 12 + 10 = 6x - 4x
--> 22 = 2x
--> x = 11
4. 24/k = 4
--> 24 = 4 x k
--> k = 24/4
--> k = 6
2007-08-26 02:25:46 補充：
2. 2y 3 = 18y-- 3 = 18y - 2y-- 3 = 16y-- y = 3/16一時手快, 出錯O左, 唔好意思~
參考: 全部自己做, 勿抄~^^
2007-08-26 10:19 am
1.3分之e+2=10
(e/3)+2=10
(e/3)=10-2
(e/3)=8
e=8*3
e=24....(答案)
ps:* =乘, / = 除
2.2y+3=18y
2y+3=18y
3=18y-2y
3=16y
16y=3
y=3/16.....(答案)
3.4x+12=2(3x-5)
4x+12=2(3x-5)
4x+12=6x-10
12+10=6x-4x
22=2x
2x=22
x=11.......(答案)
4.k分之24=4
24/k =4
24=4k
4k=24
k=24/4
k=6......(答案)
2007-08-26 02:31:31 補充：
有問題!!!!!究竟係(3分之e) 2,定3分之(e 2)????
2007-08-26 02:32:06 補充：
有問題!!!!!究竟係(3分之e)+ 2,定3分之(e+ 2)????
(e/3)+2=10
(e/3)=10-2
(e/3)=8
e=8*3
e=24....(答案)
ps:* =乘, / = 除
2.2y+3=18y
2y+3=18y
3=18y-2y
3=16y
16y=3
y=3/16.....(答案)
3.4x+12=2(3x-5)
4x+12=2(3x-5)
4x+12=6x-10
12+10=6x-4x
22=2x
2x=22
x=11.......(答案)
4.k分之24=4
24/k =4
24=4k
4k=24
k=24/4
k=6......(答案)
2007-08-26 02:31:31 補充：
有問題!!!!!究竟係(3分之e) 2,定3分之(e 2)????
2007-08-26 02:32:06 補充：
有問題!!!!!究竟係(3分之e)+ 2,定3分之(e+ 2)????
參考: 自己
收錄日期: 2021-04-13 14:02:44
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