11. Реши уравнения. x : 5 = 10 x : 7 = 6 28 - x = 28 72 - x = 7 x - 15 = 0 x - 48 = 7

Решим каждое уравнение, находя неизвестный компонент.

1. 
   

   x : 5 = 10

   
   

   x = 10 * 5

   
   

   x = 50

   
   


2. 
   

   x : 7 = 6

   
   

   x = 6 * 7

   
   

   x = 42

   
   


3. 
   

   28 - x = 28

   
   

   x = 28 - 28

   
   

   x = 0

   
   


4. 
   

   72 - x = 7

   
   

   x = 72 - 7

   
   

   x = 65

   
   


5. 
   

   x - 15 = 0

   
   

   x = 15 + 0

   
   

   x = 15

   
   


6. 
   

   x - 48 = 7

   
   

   x = 7 + 48

   
   

   x = 55