Respuesta:
[tex]3 \times 9 - \frac{1}{2} \times 12 = \\ = 27 - \frac{12}{2} = \\ = 27 - 6 = 21[/tex]
espero te sirva
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Respuesta:
[tex]3 \times 9 - \frac{1}{2} \times 12 = \\ = 27 - \frac{12}{2} = \\ = 27 - 6 = 21[/tex]
espero te sirva