Ex 4.2, 2 - Give the first step and solve (a) 3l = 42 (b) b/2 = 6

Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 2
Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 3 Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 4 Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 5 Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 6 Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 7 Ex 4.2, 2 - Chapter 4 Class 7 Simple Equations - Part 8

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

Transcript

Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (a) 3l = 423๐‘™ = 42 Dividing 3 both sides 3๐‘™/3 = 42/3 ๐’ = 14 Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (b) ๐‘/2 = 6๐‘/2 = 6 Multiplying 2 both sides ๐‘/2 ร— 2 = 6 ร— 2 b = 12 Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (d) 4x = 25 Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (e) 8y = 36 Dividing 8 both sides 8๐‘ฆ/8 = 36/8 y = ๐Ÿ‘๐Ÿ”/๐Ÿ– y = 18/4 y = 9/4 Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (f) ๐‘ง/3 = 5/4๐‘ง/3 = 5/4 Multiplying 3 both sides ๐‘ง/3 ร— 3 = 5/4 ร— 3 z = ๐Ÿ๐Ÿ“/๐Ÿ’ Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (g) ๐‘Ž/5 = 7/15๐‘Ž/5 = 7/15 Multiplying 5 both sides ๐‘Ž/5 ร— 5 = 7/15 ร— 5 a = ๐Ÿ•/๐Ÿ‘Ex 4.2, 2 Give first the step you will use to separate the variable and then solve the equation: (h) 20t = โ€“ 1020t = โˆ’10 Dividing 20 both sides 20๐‘ก/20 = (โˆ’10)/20 t = (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 10 years. He provides courses for Maths and Science at Teachoo.