解方程：x-34x=134：x=184+0.2x=0.72x-45x-6=16．

Question

解方程： x-(3)/(4)x=1	(3)/(4)：x=(1)/(8)
4+0.2x=0.72	x-(4)/(5)x-6=16．

Answer 1

（1）x-(3)/(4)x=1
           (1)/(4)x=1
       (1)/(4)x÷(1)/(4)=1÷(1)/(4)
            x=4；

（2）(3)/(4)：x=(1)/(8)
     (3)/(4)÷x=(1)/(8)
  (3)/(4)÷x×x=(1)/(8)×x
       (1)/(8)x=(3)/(4)
    (1)/(8)x÷(1)/(8)=(3)/(4)÷(1)/(8)
         x=6；

（3）4+0.2x=0.72
   4+0.2x-4=0.72-4
       0.2x=-3.28
  0.2x÷0.2=-3.28÷0.2
          x=-16.4；

（4）x-(4)/(5)x-6=16
       (1)/(5)x-6=16
     (1)/(5)x-6+6=16+6
         (1)/(5)x=22
      (1)/(5)x÷(1)/(5)=22÷(1)/(5)
           x=110．