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  1. Chapter 2 Class 8 Linear Equations in One Variable
  2. Serial order wise
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Ex 2.2, 13 A rational number is such that when you multiply it by 5/2 and add 2/3 to the product, you get โˆ’ 7/12. What is the number?Let x be the rational number Given that, If Multiply number by 5/2 and add 2/3 to product, we get โ€“ 7/12 Therefore, 5๐‘ฅ/2+2/3=(โˆ’7)/12 5๐‘ฅ/2=(โˆ’7)/12 โˆ’2/3 5๐‘ฅ/2=(โˆ’7 โˆ’ 2 ร— 4)/12 5๐‘ฅ/2=(โˆ’7 โˆ’ 8)/12 5๐‘ฅ/2=(โˆ’15)/12 ๐‘ฅ = (โˆ’15)/12ร—2/5 ๐‘ฅ = (โˆ’3)/6 ๐‘ฅ=(โˆ’1)/2 โˆด The rational number is (โˆ’๐Ÿ)/๐Ÿ

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.