（2013•湛河区）解方程x+38x=119；1.2x-5.5=0.5；0.6x=0.27.5．

Question

（2013•湛河区）解方程
x+(3)/(8)x=(11)/(9)；             1.2x-5.5=0.5；              (0.6)/(x)=(0.2)/(7.5)．

Answer 1

（1）x+(3)/(8)x=(11)/(9)
          (11)/(8)x=(11)/(9)
      (11)/(8)x÷(11)/(8)=(11)/(9)÷(11)/(8)
             x=(8)/(9)
（2）1.2x-5.5=0.5
1.2x-5.5+5.5=0.5+5.5
        1.2x=6
   1.2x÷1.2=6÷1.2
           x=5；             
（3）(0.6)/(x)=(0.2)/(7.5)
     0.2x=0.6×7.5
0.2x÷0.2=4.5÷0.2
        x=22.5