Expression 1: left parenthesis, 10 minus "t" , right parenthesis left parenthesis, "x" minus "y" , right parenthesis left parenthesis, "x" plus "y" , right parenthesis left parenthesis, "x" minus 1 , right parenthesis left parenthesis, "y" minus 2 , right parenthesis plus left parenthesis, 10 plus "t" , right parenthesis left parenthesis, "y" minus "x" left parenthesis, "x" minus 1 , right parenthesis left parenthesis, "x" minus 2 , right parenthesis left parenthesis, "x" minus 3 , right parenthesis , right parenthesis equals 010−tx−yx+yx−1y−2+10+ty−xx−1x−2x−3=0