Respuesta:
[tex] - 2 - 7 = - 9[/tex]
[tex] - 9 \times 5 \times 2[/tex]
s
[tex] \frac{ - 9 \times 5 \times 2}{ - 10} [/tex]
[tex] \frac{ - 9 \times 2}{ - 2} [/tex]
[tex] - 9 \times ( - 1)[/tex]
calculamos y da 9
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Respuesta:
[tex] - 2 - 7 = - 9[/tex]
[tex] - 9 \times 5 \times 2[/tex]
s
[tex] \frac{ - 9 \times 5 \times 2}{ - 10} [/tex]
[tex] \frac{ - 9 \times 2}{ - 2} [/tex]
[tex] - 9 \times ( - 1)[/tex]
calculamos y da 9