Ex 12.2, 4 - Chapter 12 Class 7 Algebraic Expressions - Part 2

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  1. Chapter 12 Class 7 Algebraic Expressions
  2. Serial order wise

Transcript

Ex 12.2, 4 (b) What should be subtracted from 2a + 8b + 10 to get – 3a + 7b + 16? (2a + 8b + 10) − Expression = (−3a + 7b + 16) (2a + 8b + 10) − (−3a + 7b + 16) = Expression Expression = (2a + 8b + 10) − (–3a + 7b + 16) Putting like terms below like terms and subtracting Answer is 5a + b – 6

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.