Respuesta :

r3t40

[tex]

-3x+6y=9 \\

5x+7y=-49 \\ \\

-15x+30y=45 \\

15x+21y=-147 \\ \\

51y=-102 \\

\underline{y=-2} \\ \\

-3x+6\cdot(-2)=9 \\

-3x-12=9 \\

-3x=21 \\

\underline{x=-7} \\ \\

\boxed{(-7, -2)}

[/tex]

The answer is C.

Hope this helps.

r3t40

Answer:

(-7, -2) is the correct answer

Q&A Education