Jawapan

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2014-11-24T09:40:03+08:00
  6wxey-7twex+8twyx+9twex = 6wxey + 2twex + 8twyx 
1 5 1
simplify
we can simplify ur answer
6wxey + 2twex + 8twyx = 2wx(3ey + te + 4 ty)