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If you find Tom hard ____, you’d better keep away from him.A.to get along withB.to get along C.to be
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a=-1是方程()的根.A.2a+1-1a+2=0B.2a-1-2a=0C.2a-1+1a+2=0D.2a=1-2a+2-数学
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已知关于x的方程=3的解是正数,则m的取值范围为____________.-九年级数学
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观察图形,解答问题:(1)按下表已填写的形式填写表中的空格:图①图②图③三个角上三个数的积1×(-1)×2=-2(-3)×(-4)×(-5)=-60三个角上三个数的和1+(-1)+2=2(-3)+(-
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某电器城经销A型号彩电,今年四月份每台彩电售价为2000元,与去年同期相比,结果卖出彩电的数量相同,但去年销售额为5万元,今年销售额只有4万元.(1)问去年四月份每台A型号彩-七年级数学
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分式方程的根是[]A.x=-2B.x=0C.x=2D.无实根-九年级数学
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2011年雨季,一场大雨导致一条全长为550米的污水排放管道被冲毁,为了尽量减少施工对城市交通所造成的影响,实际施工时,每天的工效比原计划增加10%,结果提前5天完成这一任-八年级数学
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(1)化简:a+b5ab•10ab2a2-b2;(2)解分式方程:1x-3=2+x3-x.-数学
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方程的解是______________.-九年级数学
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解方程:.-七年级数学
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(1)解分式方程:xx-3=2-33-x(2)计算:(48+1412)÷27.-数学
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Accidents oftenout of carelessness.A.riseB.raiseC.go upD.arise-英语
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解方程:.-七年级数学
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当x=()时,分式与互为相反数。-八年级数学
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解方程:-八年级数学
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若分式方程的值为A.1B.2C.3D.4-八年级数学
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(1)计算:+.(2)解方程:-九年级数学
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解方程(1)8x2+10x=3(2)2x-1x-3x2x-1=2.-数学
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解方程:。-九年级数学
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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
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(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
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解方程:xx-1-2x-2x-1=0-数学
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解方程:-八年级数学
题目简介
解方程:1x=5x+3-数学
题目详情
答案
化简,得:4x=3,
化系数为1:x=
经检验,x=