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NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions Exercise 12.2 is provided as a PDF in this article. Algebraic Expression consists of constants, variables and mathematical operators.
- Constants are terms whose value does not change.
- Variables are terms whose value changes. These are represented in terms of alphabets.
Download PDF: NCERT Solutions for Class 7 Maths Chapter 12 Exercise 12.2
Check other NCERT Solutions for Class 7 Maths Chapter 12:
- NCERT Solutions Class 7 Maths Exercise 12.1
- NCERT Solutions Class 7 Maths Exercise 12.3
- NCERT Solutions Class 7 Maths Exercise 12.4
Read More: NCERT Solutions for Class 7 Maths Chapter 12
Examples of Class 7 Chapter 12 Algebraic Expressions
| Ques 1. Find the value of x from the algebraic expression 2x = 8. Ans. To find the value of x, bring all the terms except x to the right side. → 2x = 8 → x = 8/2 → x = 4 Ques 2. In the algebraic expression 7y – 21=0, find the value of y. Ans. To find the value of y, bring all the terms except y to the right side. → 7y - 21 = 0 → 7y = 21 → y = 21/3 → y = 3 |
Read More:
| Like and Unlike Terms | Multiplication of algebraic terms | Addition And Subtraction Of Integers |
| Variables and Constants | Number Systems | Additive inverse |
Class 7 Maths Guides:
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