Question 1 (i) - Addition and Subtraction of Algebraic Expressions - Chapter 10 Class 7 Algebraic Expressions

Last updated at April 16, 2024 by

Ex 12.2, 1 - Simplify combining like terms: (i) 21b - 32 + 7b - 20b

 

 

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

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.