NCERT Solutions for Class 7 Maths Chapter 4 Simple Equation In this chapter, students will be introduced by a new concept 'Equation'. This topic not only builds knowledge of algebra for maths students of class 7 but also helps to develop analytical thinking. In this chapter, there is a total of 4 exercises with 18 questions in them. The NCERT Solutions for Class 7 Maths Chapter 4 Simple Equation are designed and solved by our subject experts to help students in their preparation of CBSE final exam. These NCERT Solutions are given here with a detailed explanation of each and every problem of NCERT textbook. The NCERT solutions can be extremely helpful for the class 7 Maths students to understand the basics of this chapter and to clear all their doubts easily. Students can use these solutions as worksheets to prepare for their CBSE final exams.
NCERT Class 7 Maths Chapter 4 Simple Equation begins with a fun game 'mindreading' and introduces equation a new concept of algebra. So what is an equation? It is a condition on the variable such that two expressions in the variable should have equal value. The value of the variable for which an equation is satisfied is called the solution of the equation. In the equation, there is always an equality(=) sign. The equality sign shows that the value of the expression to the lefthand side (LHS) of the equality sign is equal to the value of the expression to the righthand side (RHS) of the equality sign. For example, the equation 3x+ 7 =2x  35 has the expression (3x + 7) on the left of the equality sign and (2x  35) on the right of the equality sign. But it is not an equation if there is a sign other than the equality sign. For example, 3x + 5 > 75 is not an equation.
Example The sum of three times a number and 11 is 32. Find the number.
Solution Assume that the unknown number is x, then three times the number is 3x. And the sum of 3x and 11 is 32. That is, 3x + 11 = 32.
We go stepwise to separate the variable x on the LHS of the equation. The LHS is 3x+11. We will first subtract 11 from it so that we get 3x. From this, in the next step, we will divide by 3 to get x. Remember we must do the same operation on both the sides of the equation. Therefore, subtracting 11 from both sides,
Now divide both sides by 3,
4.1 A MindReading Game
4.2 Setting up of an Equation
4.3 Review of what we know
4.4 What Equation is?
4.4.1 Solving an Equation
4.5 More Equations
4.6 From Solution to Equation
4.7 Applications of Simple Equations to Practical Situations
NCERT Solutions for Class 7 Maths Chapter 4 Data and Handling Exercise 4.1
NCERT Solutions for Class 7 Maths Chapter 4 Data and Handling Exercise 4.2
NCERT Solutions for Class 7 Maths Chapter 4 Data and Handling Exercise 4.3
NCERT Solutions for Class 7 Maths Chapter 4 Data and Handling Exercise 4.4
NCERT Solutions for Class 7 Maths Chapter 4 Data and Handling InText Solutions
Chapter No. 
Chapter Name 
Chapter 1 

Chapter 2 

Chapter 3 

Chapter 5 

Chapter 6 

Chapter 7 

Chapter 8 

Chapter 9 

Chapter 10 

Chapter 11 

Chapter 12 

Chapter 13 

Chapter 14 
3. Solve the following:
(i) Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. How many marbles does Parmit have?
(ii) Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age. What is Laxmi's age?
(iii) People of Sundargram planted trees in the village garden. Some of the trees were fruit trees. The number of nonfruit trees were two more than three times the number of fruit trees. What was the number of fruit trees planted if the
number of nonfruit trees planted was 77?
6. Set up an equation in the following cases:
(i) Irfan says that he has 7 marbles more than five times the marbles Parmit has. Irfan has 37 marbles. (Take m to be the number of Parmit’s marbles.)
(ii) Laxmi’s father is 49 years old. He is 4 years older than three times Laxmi’s age. (Take Laxmi’s age to be y years.)
(iii) The teacher tells the class that the highest marks obtained by a student in her class is twice the lowest marks plus 7. The highest score is 87. (Take the lowest score to be l.)
(iv) In an isosceles triangle, the vertex angle is twice either base angle. (Let the base angle be b in degrees. Remember that the sum of angles of a triangle is 180 degrees).
5. Write the following equations in statement forms:
(i) p + 4 = 15
(ii) m – 7 = 3
(iii) 2m = 7
(iv) m /5 = 3
(v) 3 m/5 = 6
(vi) 3p + 4 = 25
(vii) 4p – 2 = 18
(viii) p /2 + 2 = 8