Respuesta :

Answer:

[tex]x + 3y = 7 , x - 3y = 7 : y = , x = 7[/tex]

Step-by-step explanation:

[tex]\left[\begin{array}{ccc}x + 3y = 7\\x - 3y = 7\end{array}\right][/tex]

Isolate [tex]x[/tex] for [tex]x + 3y = 7 : x = 7 - 3y[/tex]:

Substitute [tex]x = 7 - 3y[/tex]:

[tex]\begin{bmatrix}7-3y-3y=7\end{bmatrix}[/tex]

Isolate [tex]y[/tex] for [tex]7 - 3y - 3y = 7 : y = 0[/tex]:

For [tex]x[/tex] [tex]=7-3y[/tex]

Substitute [tex]y = 0[/tex]

[tex]x=7-3 * 0[/tex]

[tex]7 - 3 * 0 = 7[/tex]

[tex]x = 7[/tex]

The solution to the system of equations are:

[tex]y=0,\:x=7[/tex]

Hope I helped. If so, may I get brainliest and a thanks?

Thank you. Have a good day! =)