Ex 4.4, 1 - Chapter 4 Class 7 Simple Equations - Part 10

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Ex 4.4, 1 - Chapter 4 Class 7 Simple Equations - Part 11

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  1. Chapter 4 Class 7 Simple Equations
  2. Serial order wise

Transcript

Ex 4.4, 1 Set up equations and solve them to find the unknown numbers in the following cases: (g) Anwar thinks of a number. If he takes away 7 from 5/2 of the number, the result is 23. Let the number = 2 Given that, Taking away 7 from 5/2 of z = 23 So, 5/2 z − 7 = 23 5/2 z = 23 + 7 5/2 z = 30 5z = 30 × 2 5z = 60 z = 60/5 z = 12

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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.