Question

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Answer 1

Respuesta:

B.

Explicación paso a paso:

$- \frac{xy}{4 } + \frac{3xy}{8} + \frac{7xy}{2} = \\ \\ - \frac{2xy}{8} + \frac{3xy}{8} + \frac{28xy}{8} = \\ \\ \frac{3xy + 28xy - 2xy}{8} = \\ \\ \frac{29xy}{8}$