CBSE NCERT Class 7 Maths Chapter 12 Exercise 12.3 Solutions

Simplify these expressions and find their values if x = 3, a = – 1, b = – 2. (i) 3x – 5 – x + 9 (ii) 2 – 8x + 4x + 4 (iii) 3a + 5 – 8a + 1 (iv) 10 – 3b – 4 – 5b (v) 2a – 2b – 4 – 5 + a

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NCERT Solutions Class 7 Maths Chapter 12 Exercise 12.3 Algebraic Expressions

We need to identify the value of an expression in a variety of situations, such as when we want to see if a specific value of a variable satisfies a given equation or not. Thus, the NCERT solutions for Class 7 maths Chapter 12 exercise 12.3 Algebraic Expressions introduce the substitution method to the students for finding the value of an expression. The exercise questions require the students to substitute the given values in the given expressions to derive the answer. This exercise in the NCERT solutions Class 7 maths Chapter 12 exercise 12.3 has 10 questions, and the students will find them easy to solve.

Algebraic expressions help us find the value of unknown variables, and we know that this value depends on the variables that are forming that expression. The questions of Class 7 Maths NCERT Solutions Chapter 12 exercise 12.3 can be found below:

☛ Download NCERT Solutions Class 7 Maths Chapter 12 Exercise 12.3

Exercise 12.3 Class 7 Chapter 12

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More Exercises in Class 7 Maths Chapter 12

NCERT Solutions Class 7 Maths Chapter 12 Exercise 12.3 Tips

The students should learn how an expression is evaluated with the help of examples in the NCERT solutions Class 7 maths Chapter 12 exercise 12.3 Algebraic Expressions. They have simple steps so that the students can easily understand what needs to be done in order to evaluate it correctly.

The substitution method is simple and would require focus from the students in order to put the correct values and further solve the calculations.

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NCERT Solutions for Class 7 Maths Video Chapter 12 Exercise 12.3

NCERT Class 7 maths Videos Chapter 12 Exercise 12.3
Chapter 12 Exercise 12.3 Question 1	Chapter 12 Exercise 12.3 Question 6
Chapter 12 Exercise 12.3 Question 2	Chapter 12 Exercise 12.3 Question 7
Chapter 12 Exercise 12.3 Question 3	Chapter 12 Exercise 12.3 Question 8
Chapter 12 Exercise 12.3 Question 4	Chapter 12 Exercise 12.3 Question 9
Chapter 12 Exercise 12.3 Question 5	Chapter 12 Exercise 12.3 Question 10

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