# February 2023

## NCERT Solutions Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.4

Click here for the solutions of Exercise 12.1 Exercise 12.2 Exercise 12.3 Exercise 12.4 Exercise 11.1 Exercise 11.2 Exercise 11.3 Exercise 11.4 Exercise 10.1 Exercise 10.2 Exercise 10.3 Exercise 10.4 Exercise 10.5 Exercise 9.1 Exercise 9.2 Exercise 8.1 Exercise 8.2 Exercise 8.3 Exercise 7.1 Exercise 7.2 Exercise 6.1 Exercise 6.2 Exercise 6.3 Exercise 6.4 Exercise …

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## NCERT Solutions Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.3

Algebraic Expressions Exercise 12.3 1). If m = 2, find the value of: (i) m – 2 (ii) 3m – 5 (iii) 9 – 5m (iv) 3m2 – 2m – 7 (v) 5m/2 – 4 Solution: (i) m – 2 Put m = 2 in the given expression m – 2 = 2 – …

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## NCERT Solutions Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.2

Algebraic Expressions Exercise 12.2 1). Simplify combining like terms: (i) 21b – 32 + 7b – 20b Solution: 21b – 32 + 7b – 20b = 21b + 7b – 20b – 32 = ( 21 + 7 – 20 ) b – 32 = 8b – 32 Ans: 21b – …

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## NCERT Solutions Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.1

Algebraic Expressions Exercise 12.1 1). Get the algebraic expressions in the following cases using variables, constants and arithmetic operations. (i) Subtraction of z from y. (ii) One-half of the sum of numbers x and y. (iii) The number z multiplied by itself. (iv) One-fourth of the product of numbers p and q. (v) Numbers x and …

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