Linear Equations in One Variable - Solutions 1

CBSE Class –VIII Mathematics
NCERT Solutions
CHAPTER - 2
Linear Equations in One Variable
 (Ex. 2.1)

Solve the following questions.
1. 
 Ans. 
  = 7 + 2   [Adding 2 to both sides]
  = 9

2. 
 Ans. 
  = 10 – 3  [Subtracting 3 from both sides]
  = 7

3. 
 Ans. 
   [Subtracting 2 from both sides]
  
 

4. 
 Ans. 
   [Subtracting  from both sides]
  
  
 

5. 
 Ans. 
    [Dividing both sides by 6]
 

6. 
 Ans. 
  = [Multiplying both sides by 5]
  = 50

7. 
 Ans. 
   [Multiplying both sides by 3]
 
    [Dividing both sides by 2]
 

8. 
 Ans.  
     [Multiplying both sides by 1.5]
  
 

9. 
 Ans. 
     [Adding 9 to both sides]
  
   [Dividing both sides by 7]
 

10. 
 Ans. 
     [Adding 8 to both sides]
  
   [Dividing both sides by 14]
 

11. 
 Ans. 
     [Subtracting 17 from both sides]
  
   [Dividing both sides by 6]
 

12. 
 Ans. 
     [Subtracting 1 from both sides]
  
  
      [Multiplying both sides by 3]