3/1-x+2/2=1,3/2x-6=2/x+2+1,3/x+8=﹣x,3-1.2x=5/4-12.例:3/2念3分之2

3/1-x+2/2=1,3/2x-6=2/x+2+1,3/x+8=﹣x,3-1.2x=5/4-12.例:3/2念3分之2

答案是x=三分之一,54,-6,六分之71,若果你的題目對的話