Exercise 2.1 Exercise 2.2 Exercise 2.3 Exercise 2.4 Exercise 2.5 Exercise 2.6
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
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