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Ex 4.3, 1 Set up equations and solve them to find the unknown numbers in the following cases: (d) When I subtracted 11 from twice a number, the result was 15.Let, the number = w Given that, Subtracted 11 from twice a number = 15 2w − 11 = 15 2w = 15 + 11 2w = 26 w = 26/2 w = 13

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.