Respuesta :

SINAZEUS
-x+y=6
[tex] -( - 1 )+ 5 = b \\ 6 = b[/tex]
it's true



2x+3y=13
[tex]2 \times ( - 1) + 3 \times 5 = b \\ - 2 + 15 = b \\ 13 = b[/tex]
it is correct




good luck

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