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2006-11-01 2:27 am
1. y+4+y+14+4=44

2. 3a+a+5(a-5)=325

回答 (9)

2006-11-01 2:32 am
✔ 最佳答案
1.
y+4+y+14+4=44
2y+22=44
2y=44-22
y=22÷2
y=11
.
2.
3a+a+5(a-5)=325
4a+5a-5x5=325
9a=325+25
a=350÷9
2006-11-01 2:41 am
1. y+4+y+14+4=44
2y+32=44
2y+32-32=44-32
2y=12
2y/2=12/2
y=6

2.3a+a+5(a-5)=325
4a+5a-25= 325
9a-25+25=325+25
9a=350
9a/9=350/9
a=350*(1/9)
a=38 8/9
參考: 數學書
2006-11-01 2:40 am
1.y+4+y+14+4=44
2y+22=44
2y+22-22=44-22
2y=22
y=11
2006-11-01 2:35 am
1.y+4+y+14+4=44
     2y+22 =44
2y=44-22
2y=22
y=11

2. 3a+a+5(a-5)=325
4a+5a-25=325
9a=325+25
9a=350
a=38.888888888888............
2006-11-01 2:34 am
1. y+4+y+14+4=44
y+y=44-14-4-4
2y=22
y=11


2. 3a+a+5(a-5)=325
3a+a+5a-25=325
3a+a+5a=325+25
9a=350
a=350/9
參考: me*
2006-11-01 2:34 am
1.2y+22=44
y=22/2
y=11
2.4a+5(a-5)=325
4a+5a-25=325
9a-25=325
a=350/9
a=38.8888...
2006-11-01 2:34 am
1. y+4+y+14+4=44
2y = 44 - 22
2y = 22
y = 11

2. 3a+a+5(a-5)=325
3a + a + 5a - 25 = 325
9a = 325 + 25
9a = 350
a = 350 / 9
a = 38 8/9
2006-11-01 2:34 am
1. y+4+y+14+4=44
2y+22=44
2y=22
y=11

2. 3a+a+5(a-5)=325
3a+a+5a-25=325
9a=350
a=350/9
a=38 8/9=38.88888...
2006-11-01 2:33 am
1.
y+4+y+14+4=44
2y+22=44
2y=44-22
y=22÷2
y=11
.
2.
3a+a+5(a-5)=325
4a+5a-5x5=325
9a=325+25
a=350÷9
參考: me


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