NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable

**NCERT Solutions for Class 8 Maths Chapter 2 Linear Equations in One Variable Exercise 2.1**

Ex 2.1 Class 8 Maths Question 1.

Solve the equation: x – 2 = 7.

Solution:

Given: x – 2 = 7

⇒ x – 2 + 2 = 7 + 2 (adding 2 on both sides)

⇒ x = 9 (Required solution)

Ex 2.1 Class 8 Maths Question 2.

Solve the equation: y + 3 = 10.

Given: y + 3 = 10

⇒ y + 3 – 3 = 10 – 3 (subtracting 3 from each side)

⇒ y = 7 (Required solution)

Ex 2.1 Class 8 Maths Question 3.

Solve the equation: 6 = z + 2

Solution:

We have 6 = z + 2

⇒ 6 – 2 = z + 2 – 2 (subtracting 2 from each side)

⇒ 4 = z

Thus, z = 4 is the required solution.

Ex 2.1 Class 8 Maths Question 4.

Solution:

Ex 2.1 Class 8 Maths Question 5.

Solve the equation 6x = 12.

Solution:

We have 6x = 12

⇒ 6x ÷ 6 = 12 ÷ 6 (dividing each side by 6)

⇒ x = 2

Thus, x = 2 is the required solution.

Ex 2.1 Class 8 Maths Question 6.

Thus, t = 50 is the required solution.

Ex 2.1 Class 8 Maths Question 7.

Thus, x = 27 is the required solution.

Ex 2.1 Class 8 Maths Question 8.

Thus, y = 2.40 is the required solution.

Ex 2.1 Class 8 Maths Question 9.

Solve the equation 7x – 9 = 16.

Solution:

Ex 2.1 Class 8 Maths Question 10.

Ex 2.1 Class 8 Maths Question 11.

Solve the equation 17 + 6p = 9.

Solution:

Ex 2.1 Class 8 Maths Question 12.

Solution: