# System of linear equations

If there are two linear equations with at least two variables, there is a **system of linear equations**. To solve such a system of equations, one needs as many linear equations as unknown variables. The following possibilities exist for solving a system of linear equations:

- Graphical method
- Elimination of variables
- Set equal to each other
- Addition method

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### Note

A system of linear equations can have either one, no, or infinite solutions.