Linear Equations in One Variable - Solutions 1

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

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Solve the following questions.

1. 

 Ans. 

  = 7 + 2   [Adding 2 to both sides]

  = 9

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2. 

 Ans. 

  = 10 – 3  [Subtracting 3 from both sides]

  = 7

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3. 

 Ans. 

   [Subtracting 2 from both sides]

  

 

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4. 

 Ans. 

   [Subtracting  from both sides]

  

  

 

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5. 

 Ans. 

    [Dividing both sides by 6]

 

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6. 

 Ans. 

  = [Multiplying both sides by 5]

  = 50

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7. 

 Ans. 

   [Multiplying both sides by 3]

 

    [Dividing both sides by 2]

 

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8. 

 Ans.  

     [Multiplying both sides by 1.5]

  

 

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9. 

 Ans. 

     [Adding 9 to both sides]

  

   [Dividing both sides by 7]

 

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10. 

 Ans. 

     [Adding 8 to both sides]

  

   [Dividing both sides by 14]

 

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11. 

 Ans. 

     [Subtracting 17 from both sides]

  

   [Dividing both sides by 6]

 

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12. 

 Ans. 

     [Subtracting 1 from both sides]

  

  

      [Multiplying both sides by 3]