除数是:(179-3-2-2)÷(3+1)=172÷4=43被除数是:43x3+2=129+2=131
除数:179-2-2-3=172 172÷(3+1)=43被除数 43×3+2=131检验: 131÷43=3……2 131+43+3+2=179
179-3-2x2=172172÷(3+1)=4343X3+2=131