,基本砀专项训练(十五)去分母解一元一次方程解下列一元一次方程:2,8z十5_2z一135触:3(3x十5=2(2x一1)9x十15=4x一2乙一22z一3.万5二1解:3(x一2)一2(2x一1)=123x一64x十2=123x一4x二12+6一22z十15z一155生二1解:2(2xr+1)一(5x一1)=64x十2一5x十1二64xr5x=6一2一14)=63x一9一4x十16二63x一4x=6+9一16“JincL堂T门9十1_1一y8352十16.5“解:4(5y+1)=3(9y+1)一8(1-)20y+4=27y+3一8+8y20y-27y-8y=3-8-4一15y=-9Jinehutou.com解:4x一(x一1)=4一2(3一x),4x一x十1二4一6十2x4x一x一2x二4一6一1x二一31十3工z瀛2(1十3x)十6=6x一3(x一1)2十6x十6=6x一3x十36x一6x+3x=3一2一63x=一5属户立贵暑凶世UU.COIm|触:(x+3)4=2(x一3)一8X十3一4二2x一6一8羟一2一一吊一3十人一文二一13川5hutou.com5Z一22z十1E10.玄十二2一5解:3x十(5x一2)二12一2(2x十1)3x十5x一2=12一4x一23x十5x十4xr二12一2十212x二12Jiirehutou.com