Question

If x and y are the angles forming a linear pair such that x-y=60° and x+y =80° then find y

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Answer 1

Answer:

The value of ∠ y = 10°

Step-by-step explanation:

The given pair of linear equations are:

x - y = 60°                       _______ (1)

and  x + y = 80°                  _________(2)

To find, the value of ∠ y = ?

Adding equations (1) and (2), we get

x - y + x + y = 60° + 80°      

⇒ 2x = 140°    

⇒ x = 70°    

Put  x = 70° in equation (1), we get

70° - y = 60°  

⇒ y = 70° - 60° = 10°

Thus, the value of ∠ y = 10°