(3,1)
[tex]2x + y = 7[/tex]
[tex] - x - y = - 4[/tex]
sumamos y restamos
[tex]x = 3[/tex]
sustituimos
[tex]2(3) + y = 7[/tex]
[tex]y = 7 - 6 = 1[/tex]
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(3,1)
[tex]2x + y = 7[/tex]
[tex] - x - y = - 4[/tex]
sumamos y restamos
[tex]x = 3[/tex]
sustituimos
[tex]2(3) + y = 7[/tex]
[tex]y = 7 - 6 = 1[/tex]