## Revision Notes for CBSE Class 8 Maths Chapter 2 - Free PDF Download

## FAQs on CBSE Class 8 Revision Notes Maths Chapter 2 Linear Equations in One Variable (Free PDF Download)

1. What is the difference between a constant and a variable?

A constant is a number whose value is fixed or that is constantly the same. Its degree is 0. A variable, often represented by a letter, represents some unknown value that is not fixed.

2. What kind of problems can be solved using ‘Linear Equations in One Variable’?

Linear equations can be used to solve:

Age-related problems

Geometry-related problems

Money, percentage-related problems

Work, time, and wage-related problems

Calculate speed sums, perimeters, and areas

3. Can a linear equation have more than one solution?

No, a linear equation in one variable can have only one solution. The solution can be a real number, and it may or may not be unique.

4. What is the role of the balance method in solving linear equations?

The balance method is a visual representation technique used to solve linear equations. It involves keeping both sides of the equation balanced by performing the same operation on both sides. The aim is to isolate the variable term and find its value.

5. Can we solve word problems using linear equations?

Yes, linear equations can be used to solve word problems. By translating the given problem into an equation, you can solve for the unknown variable and find the solution to the problem.