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Akaljeet
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Asked: 2021-03-19T10:08:18+00:00 In:

(a) Construct 3 equations starting with x =2. (b) Construct 3 equations starting with x= -2.

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NCERT Solutions for Class 7 Mathematics Chapter 4
Important NCERT Questions
Class vii Math Chapter 4 Simple Equations Exercise 4.3
NCERT Books for Session 2022-2023
CBSE Board
Questions No: 4

2020-2021cbsechapter 4class7mathematicsncertsimple equations
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    1. Best Answer

      (a) 3 equations starting with x = 2.
      (i) x = 2
      Multiplying both sides by 10,
      10x = 20
      Adding 2 both sides
      10x + 2 = 20+2 = 10x+2 = 22

      (ii) x = 2
      Multiplying both sides by 5
      5x = 10
      Subtracting 3 from both sides
      5x-3 = 10-3 = 5x-3 = 7

      (iii) x = 2
      Dividing both sides by 5
      x/5 = 2/5

      (b) 3 equations starting with x = -2.
      (i) x = -2
      Multiplying both sides by 3
      3x=-6
      (ii) x = -2
      Multiplying both sides by 3
      3x=-6
      Adding 7 to both sides
      3x+7 = -6+7 = 3x+7 =1

      Class 7 Maths Chapter 4 Exercise 4.3

      for more answers vist to:
      https://www.tiwariacademy.com/ncert-solutions/class-7/maths/chapter-4/

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    2. (iii) x =-2
      Multiplying both sides by 3
      3x=-6
      Adding 10 to both sides
      3x+10 = -6+10=3x+10=4

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