Ex 4.1, 1 - Complete the last column of table (i) x + 3 = 0 x = 3

Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 2
Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 3 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 4 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 5 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 6 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 7 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 8 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 9 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 10 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 11 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 12 Ex 4.1, 1 - Chapter 4 Class 7 Simple Equations - Part 13

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Transcript

x + 3 = 0, x = 3 x + 3 = 0 Putting x = 3 3 + 3 = 0 6 = 0 It is false. So, equation is not satisfied (ii) x + 3 = 0, x = 3 x + 3 = 0 Putting x = 0 0 + 3 = 0 3 = 0 It is false. So, equation is not satisfied (ii) x + 3 = 0, x = 3 x + 3 = 0 Putting x = 0 0 + 3 = 0 3 = 0 It is false. So, equation is not satisfied (iii) x + 3 = 0, x = 3 x + 3 = 0 Putting x = 3 3 + 3 = 0 3 3 = 0 0 = 0 It is True. So, equation is satisfied (iv) x 7 = 1, x = 7 x 7 = 1 Putting x = 7 7 7 = 1 0 = 1 It is false. So, equation is not satisfied (v) x 7 = 1, x = 8 x 7 = 1 Putting x = 8 8 7 = 1 1 = 1 It is True. So, equation is satisfied (vi) 5x = 25, x = 0 5x = 25 Putting x = 0 5(0) = 25 0 = 25 It is False. So, equation is not satisfied (vii) 5x = 25, x = 5 5x = 25 Putting x = 5 5(5) = 25 25 = 25 It is True. So, equation is satisfied (viii) 5x = 25, x = 5 5x = 25 Putting x = 5 5( 5) = 25 25 = 25 It is False. So, equation is not satisfied (ix) /3 = 2, m = 6 /3 = 2 Putting m = 6 ( 6)/3 = 2 2 = 2 It is False. So, equation is not satisfied (x) /3 = 2, m = 0 /3 = 2 Putting m = 0 0/3 = 2 0 = 2 It is False. So, equation is not satisfied (xi) /3 = 2, m = 6 /3 = 2 Putting m = 6 6/3 = 2 2 = 2 It is True. So, equation is satisfied

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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.