## Free Solutions PDF For Class 7 RS Aggarwal Available

## FAQs on Class 7 RS Aggarwal Chapter-7 Linear Equations in One Variable Solutions - Free PDF Download

**1. What is the Basic Mathematical Formula for a Linear Equation in One Variable?**

In mathematics, x, y, and z are the most used variables. For linear equations in one variable, there is only one variable used (x). So, the equation goes as ax + b = c. For more such answers and explanations, look up Vedantu’s site.

**2. What is the Unique Solution in a Linear Equation in One Variable?**

Unique solution in simple terms means the existence of one specific solution for an equation. Equations with one variable will only have one unique solution. For more such answers and explanations, look up Vedantu’s site.

**3. How to Solve a Linear Equation in One Variable?**

The first step to solve a linear equation in one variable is to compare the left-hand expression to the right-hand side. By interchanging the operators, we can solve the equation. For more such answers and explanations, look up Vedantu’s site.

**4. What are some important points about linear equations?**

Linear equation in itself is one of the most important chapters to be studied thoroughly. But to give it some important points, they are as follows:

The linear equation contains an equality sign.

The expression to the left of the equal sign is known as the LHS (left-hand side), while the phrase to the right of the equal sign is known as the RHS (right-hand side) (right-hand side).

The LHS of a linear equation is equal to the RHS for particular values only, and these values are the solutions of these linear equations.

For more such answers and explanations, look up Vedantu’s site.

**5. What is the difference between the transposing method and the balance method?**

There is a big difference in both the methods of solving linear equations, transposing method and balance method. The difference between the two of them is as follows:

**Transposing Method**: In this procedure, we must transpose or move the constants or variables from one side to the other until the solution is obtained. When we transpose the terms, the sign changes.**Balance Method**: To discover the solution, we must add or subtract with the same quantity on both sides without upsetting the balance.

For more such answers and explanations, look up Vedantu’s site.