互为相反数宴桐则相加为0|2x+3|+(3x-1)/4=0若x>=-3/2则2x+3>=0所以2x+3+(3x-1)/4=08x+12+3x-1=0x=-1若晌敏坦x<-3/2则2x+3<0所拿纳以-2x-3+(3x-1)/4=0-8x-12+3x-1=0x=--13/5所以x=-1,x=-13/5
2x+3=-(3x-1)/48x+12=-3x+111x=-11x=-1