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


Example 6 From the sum of 2y2 + 3yz, – y2 – yz – z2 and yz + 2z2, subtract the sum of 3y2 – z2 and –y2 + yz + z2. First of all, We’ll find sum of (2y2 + 3yz), (– y2 – yz – z2 ) and (yz + 2z2)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.