(0.2x-0.1)/0.3-2=(x-1)/0.4左右同乘1.24(0.2x-0.1)-2.4=3(x-1)0.8x-0.4-2.4=3x-33x-0.8x=0.22.2x=0.2x=1/11已检查,满意请及时采纳,不懂请追问!