题目: 若分式3x+5x-1无意义,当53m-2x-12m-x=0时,则m=______. 答案: 依题意得x-1=0,解得x=1.∴分式方程可化为:53m-2-12m-1=0,方程两边都乘(3m-2)(2m-1),得5(2m-1)-(3m-2)=0,解得m=37.检验:当m=37时,(3m-2)(2m-1)≠0.∴m=37是原方程的解.
题型:选择题 If you don’t want to choose the thinner one, ___.A.I will eitherB.nor will IC.either I willD.neither won’t I 查看答案