Qx=100=101-3Px+2Py
Qy×3=Qy2
Qy2=210=216+3Px-3Py
Qx+Qy2
310=317-Py
Py=7
http://tw.knowledge.yahoo.com/question/question?qid=1613042503326
Qx=101–3Px+2Py,100=101–3Px + 2Py,(式一)
Qx=101–3Px+2Py,70=72+Px–Py,乘3→210=216+3Px-3Py(式二)
兩式相加,310=317-Py,Py=317-310=7
2 張大千與齊白石都是民初國畫大師。假設世界僅存張大千的國畫 100 幅,齊白石..-阿摩線上測驗