设现价是x元,由题意得:
 (1-10%)x-32=(1-20%)x+48,
      90%x-32=80%x+48,
 90%x-32-80%x=80%x+48-80%x,
      10%x-32=48,
   10%x-32+32=48+32,
         10%x=80,
    10%x÷10%=80÷10%,
            x=800;
800×(1-10%)-32,
=800×90%-32,
=720-32,
=688(元);
答:这件商品的进价是688元.
故答案为:688.
