# EXERCISE 2.1

Question 1 :

Solve : x – 2=7

sol : x – 2=7

On transposing 2 to R.H.S , we obtain

x = 7 + 2

x = 9

Question 2 :

Solve : y+3=10

sol :

y+3=10

On transposing 3 to R.H.S , we obtain

y= 10 – 3

y = 7

Question 3 :

Solve : 6 =z+2

sol :

6 = z+2

On transposing 2 to L.H.S , we obtain

6-2 = z

z=4

Question 4 :

Solve : ​ sol : On transposing ​ ​ to R.H.S , we obtain  = 2

Question 5 :

Solve : 6x=12

sol :

6x=12

Dividing both side by 6 , we obtain Question 6 :

Solve : ​ sol : Multiplying both side by 5, we obtain t=50

Question 7 :

Solve : ​ sol : Multiplying both side by ​ ​ , we obtain x=27

Question 8 :

Solve : ​ sol : Multiplying both sides by 1.5 , we obtain 2.4=y

Question 9 :

Solve : 7x-9 = 16

sol :

7x-9 = 16

On transposing 9 to R.H.S , we obtain

7x=16+9

7x = 25

Dividing both side by 7 , we obtain  Question 10 :

Solve : ​ sol : On transposing 8 to R.H.S , we obtain Dividing both side by 14 , we obtain  Question 11 :

Solve : ​ sol : On transposing 17 to R.H.S , we obtain  Dividing both side by 6 , we obtain  Question 12 :

Solve : ​ sol : On transposing 1 to R.H.S , we obtain   Multiplying both sides by 3 , we obtain  error: Content is protected !! 