There are 3 available methods - Substitution , Elimination and Matrix.
The substitution method is used to eliminate one of the variables by replacement.
The elimination method is used for solving linear systems.
A Matrix is an array of numbers.
Lets use Substitution to solve this system.
[tex]x+3y=0[/tex]
[tex]x=-3y
[/tex]
Substitute [tex]x=-3y [/tex] into [tex]2x+6y=12[/tex]
[tex]2x+6y=12[/tex]
[tex]2*-3y+6y=12[/tex]
[tex]0=12[/tex]
No Solution