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Solve a System of Linear Equations Using Substitution Method Video Lecture | Mathematics (Maths) Class 10
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FAQs on Solve a System of Linear Equations Using Substitution Method Video Lecture - Mathematics (Maths) Class 10
| 1. What is the substitution method for solving a system of linear equations? |  |
| 2. When is the substitution method preferred over other methods of solving linear equations? | |
Ans. The substitution method is typically preferred when one of the equations in the system has a variable with a coefficient of 1 or -1. This makes it easier to isolate the variable and substitute it into the other equation. Additionally, the substitution method is useful when one equation is already solved for one variable, making substitution straightforward.
| 3. Can the substitution method be used for systems of nonlinear equations? | |
Ans. No, the substitution method is specifically designed for solving systems of linear equations. Nonlinear equations involve variables with powers other than 1 and cannot be solved using the same technique. Nonlinear systems often require more advanced methods such as graphing or numerical approximation.
| 4. Are there any limitations to using the substitution method? | |
Ans. While the substitution method is effective for many linear equations, it may not be the most efficient method for large systems or equations with complex coefficients. In such cases, other methods like matrix algebra or elimination method might be more suitable. Additionally, the substitution method may lead to fractions or decimals in the solutions, which may not be desired in certain contexts.
| 5. Can the substitution method be used for systems of equations with more than two variables? | |
Ans. No, the substitution method can only be used for systems of equations with two variables. It involves isolating one variable and substituting it into the other equation, which is not possible when dealing with three or more variables. In such cases, more advanced techniques like the Gaussian elimination method or matrix algebra are used to solve the system.
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