Respuesta :

Answer:

Not a solution of the system

Step-by-step explanation:

Substitute 2 for x and -1 for y

[tex]7(2)+2(-1)=12\\6(2)-3(-1)=20[/tex]

Simplify

[tex]14-2=12\\12+3=20[/tex]

Simplify

[tex]12=12\\15\neq 20[/tex]