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Question 1 (i) - Addition and Subtraction of Algebraic Expressions - Chapter 10 Class 7 Algebraic Expressions
Last updated at July 14, 2026 by Teachoo
Addition and Subtraction of Algebraic Expressions
Chapter 10 Class 7 Algebraic Expressions
Concept wise
- Definitions
- Terms, Factors and Coefficients
- Monomials, Binomials, Trinomials
- Like and unlike terms
-
Addition and Subtraction of Algebraic Expressions
- Finding value of expression
- Number patterns
Transcript
Question 1 Simplify combining like terms: (i) 21b – 32 + 7b – 20b 21b − 32 + 7b − 20b = 21b + 7b − 20b − 32 = b (21 + 7 − 20) − 32 = b (28 − 20) − 32 = b (8) − 32 = 8b − 32
