Respuesta:
[tex]2x - 7 = 1 \\ 2x = 1 + 7 \\ 2x = 8 \\ x = \frac{8}{2} = 4 \\ x = 4 \\ 2x + y = 7 \\ 2 \times 4 + y = 7 \\ 8 + y = 7 \\ y = 7 - 8 = - 1 \\ y = - 1[/tex]
Explicación paso a paso:
2*4+(-1)=8-1=7
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Respuesta:
[tex]2x - 7 = 1 \\ 2x = 1 + 7 \\ 2x = 8 \\ x = \frac{8}{2} = 4 \\ x = 4 \\ 2x + y = 7 \\ 2 \times 4 + y = 7 \\ 8 + y = 7 \\ y = 7 - 8 = - 1 \\ y = - 1[/tex]
Explicación paso a paso:
2*4+(-1)=8-1=7