设甲桶原来装油x千克,则乙桶原来装油(44-x)千克甲桶倒出5分之1——甲桶还剩：(1-1/5)x乙桶倒进2.8kg——乙桶共有：44-x+2.8两桶的汽油相等:(1-1/5)x=44-x+2.80.8x=46.80-x0.8x+x=46.81.8x=46.8x=46.8÷1.8x=2644-26=...