优课网
首页
数学
语文
英语
化学
物理
政治
历史
生物
首页
> (1)解分式方程:xx-3=2-33-x(2)计算:(48+1412)÷27.-数学
(1)解分式方程:xx-3=2-33-x(2)计算:(48+1412)÷27.-数学
题目简介
(1)解分式方程:xx-3=2-33-x(2)计算:(48+1412)÷27.-数学
题目详情
(1)解分式方程:
x
x-3
=2-
3
3-x
(2)计算:(
48
+
1
4
12
)
÷
27
.
题型:解答题
难度:中档
来源:不详
答案
(1)去分母得:x=2x-6+3,
解得:x=3,
经检验x=3是增根,原分式方程无解;
(2)原式=
48÷27
+
class="stub"1
4
12÷27
=
class="stub"4
3
+
class="stub"1
6
=
class="stub"3
2
.
上一篇 :
已知方程,那么的值为().A.B.C.D.无解-
下一篇 :
________ different life toda
搜索答案
更多内容推荐
One of the tourists ______ from the tour group. That was why the tour guide lost his temper.A.kept a
如图,点A、B在数轴上,它们所对应的数分别是-4与2x+23x-5,且点A、B到原点的距离相等.则x=______.-数学
Accidents oftenout of carelessness.A.riseB.raiseC.go upD.arise-英语
解方程:.-七年级数学
Mary’s parents believe that she will ___ a perfect dancer if she keeps practicing.A.turnB.makeC.take
若2x+1与2x-1互为倒数,则实数x=______.-数学
In daily life,we often use bodylanguage to ________ extra meaning.[ ]A.broadcastB.predictC.conveyD.e
Her mother ________ the girl to leave the house before she had finished her homework.[ ]A. prevented
当x=()时,分式与互为相反数。-八年级数学
解方程:-八年级数学
Don’t leave things lying around; ______ them together and put them in this cabinet (橱柜).[ ] A. haveB
The minister said, “We are ready for discussions with any legal parties,but we'll never _______
若分式方程的值为A.1B.2C.3D.4-八年级数学
Your meaning didn’t really .A.get throughB.get inC.get awayD.get across-高三英语
(1)计算:+.(2)解方程:-九年级数学
The news caused heated discussion online, with people _____ the government ____ using the expensive
解方程(1)8x2+10x=3(2)2x-1x-3x2x-1=2.-数学
Some people ________ land because they regard it as a commodity belonging to them.[ ]A. employB. ado
解方程:。-九年级数学
请选择一组的值,写出一个关于的形如的分式方程,使它的解是,这样的分式方程可以是______________.-八年级数学
Students are required to _______ down what the teachers teach in class. Which of the following is wr
When she was asked how she had managed to live ___with the man she hated so much, she didn't __
He used to be a popular singer, but drug ____ his ruin.A.resulted fromB.contributed toC.attended toD
It has been that some government leaders_____their authority and position to get illegal profits for
(2011江苏淮安,22,8分)七(1)班的大课间活动丰富多彩,小峰与小月进行跳绳比赛.在相同的时间内,小峰跳了100个,小月跳了110个.如果小月比小峰每分钟多跳20个,试求出小峰-七年级数学
At present an increasing number of parents wish to _________ changes in educating their children du
解方程:xx-1-2x-2x-1=0-数学
I used to hate being ________ about my red hair when I was at school.[ ]A.dressed B.scoldedC.teased
解方程:-八年级数学
分式方程的解为.-七年级数学
Who else except a millionaire could________to use such an expensive car?[ ]A. pay B. spend C. buyD.
如果方程xx-3=3x-3有增根,那么增根的值为()A.0B.-1C.3D.1-数学
It is said that his carelessness ____ the terrible accident.A.resulted fromB.resulted inC.turned ou
To get a good view of the scenery in China, Lucy would spend a lot of time on the train _________ t
The results of the medical checkup suggested that my father in poor health, so the doctor suggested
She promised to be here at 8:00, but she never ______. [ ]A. turned down B. turned off C. turned ove
After only half an hour's rest, the woman scientist ________ her research.[ ]A.relied onB.carri
Customers’ demand has great _________ on the prices, that is, it ______ the market.[ ]A. effects; ef
解下列方程:xx-2=3(x-2)x+2.-数学
甲队修路120m与乙队修路100m所用天数相同,已知甲队比乙队每天多修10m,设甲队每天修路xm.依题意,下面所列方程正确的是A.B.C.D.-七年级数学
某文化用品商店用2000元购进一批学生书包,面市后发现供不应求,商店又购进第二批同样的书包,所购数量是第一批购进数量的3倍,但单价贵了4元,结果第二批用了6300元。(1)求-八年级数学
关于分式方程x-2x+2-16x2-4=1的解的情况,下列说法正确的是()A.有一个解是x=2B.有一个解是x=-2C.有两个解是x=2和x=-2D.没有解-数学
Each day is a gift,and _______my eyes open,I’11 focus on the new day and all the happy memories I ’v
In copying this paper , be careful not to _______ any words.A.leave behindB.leave asideC.leave offD.
The Iranian government is accused of _______ some terror organizations in the Middle East by the Uni
解方程:(1)3x+5x2=0;(2)7x(3-x)=4(x-3);(3)xx-2=3(x-2)x+2.-数学
解下列方程或方程组(1)x2-5x-4=0;(2)(x+2)(x+3)=4-x2.(3)(x-1)2x2-x-1x-2=0,(4)解方程组x2+y2=102x-y=5.-数学
解方程:(1);(2)-八年级数学
Our teachers made us ________a lot of homework after school.[ ]A. to doB. doing C. doD. to have done
解方程小题1:小题2:-八年级数学
返回顶部
题目简介
(1)解分式方程:xx-3=2-33-x(2)计算:(48+1412)÷27.-数学
题目详情
(2)计算:(
答案
解得:x=3,
经检验x=3是增根,原分式方程无解;
(2)原式=