NCERT Solutions for Class 7 Maths Chapter 4 Simple Equations Exercise 4.2

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NCERT Solutions for Class 7 Maths Chapter 4 Simple Equations Exercise 4.2 is provided as a pdf reference for the students in the article below. Exercise 4.2 entirely explains the concept of solving an equation. Students learn to solve the equation completely and arrive at a final answer.

Some of the important points to remember while solving an equation are summarized as follows:

The same number can be added on both sides of the equation(LHS and RHS).
The same number can be subtracted from both sides of the equation(LHS and RHS).
The same non-zero number can be multiplied or divided on both sides of the equation(LHS and RHS).
The equality of the equation fails, if the same operation is not carried out on both sides (LHS and RHS)

Download PDF: NCERT Solutions for Class 7 Maths Chapter 4 Exercise 4.2

Check other NCERT Solutions for Class 7 Maths Chapter 4:

Example From Class 7 Chapter 4 Simple Equations

Ques. Find the unknown variables in the following equations:

3n + 7 = 25
3l = 42

Ans.

3n + 7 = 25

Simplifying the equation further we get,

3n = 25-7

Therefore,

3n = 18

Hence,

n= 6

3l = 42

Simplifying the equation further we get,

l = 42/3

Hence,

l = 14

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