what are the methods of solving a system of linear equations

1 answer

There are multiple methods for solving a system of linear equations. Some of the common ones include:

1. Substitution Method: In this method, you solve one equation for one variable, and then substitute that solution into the other equation(s) to find the value(s) of the remaining variable(s).

2. Elimination Method: In this method, you manipulate the equations by adding or subtracting them to eliminate one variable and then solve for the other variable.

3. Cramer's Rule: This method involves using determinants to solve a system of linear equations. The determinants are obtained by substituting the coefficients of the variables into a matrix, and then solving for the unknowns by dividing these determinants with the determinant of the coefficient matrix.

4. Matrix Method: In this method, the system of linear equations is represented as a matrix equation, and then matrices are used to solve the system.

5. Graphing Method: In this method, the equations are plotted on a graph, and the points of intersection are identified as the solution to the system.

These methods can be used individually or in combination depending on the complexity and nature of the system of equations.