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Simplify [(-4) × (-5)] + [-16 × \(\frac{-1}{2}\)]

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-4 × -5 = 20

\(-16\times\frac{-1}{2}\) = 8

∴ [(-4) x (-5)] + [-16 x \(\frac{-1}{2}\)]

= 20 + 8 = 28

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