解方程.6X-X=125  0.5X-2=2

2024-09-20 15:37:52

解方程.
6X-X=125  
0.5X-2=24  
X÷0.6=4.5.

好评回答
(1)6X-X=125,
           5X=125,
        5X÷5=125÷5,
            X=25;

(2)0.5X-2=24,
   0.5X-2+2=24+2,
       0.5X=26,
  0.5X÷0.5=26÷0.5,
          X=52;

(3)X÷0.6=4.5
X÷0.6×0.6=4.5×0.6,
          X=2.7.