Question

1 + 5 ·[4 · 7 + 5 · (15 – 4 · 5)] – 3 · (7 - 4) ayudaaaaaaaaaaaaaaaaa por fa

Answer 1

Respuesta:

Explicación paso a paso:

1 + 5 ·[4 · 7 + 5 · (15 – 4 · 5)] – 3 · (7 - 4)

1+5.[4 · 7 + 5 · (-5)] – 3 · (3)

1+5.[28 + (-25)] –9

1+5.[3] –9

1+15-9

7

Answer 2

Respuesta:

7

Explicación paso a paso:

$1+5\left[4\cdot \:7+5\left(15-4\cdot \:5\right)\right]-3\left(7-4\right)$

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• $\left[4\cdot \:7+5\cdot \left(15-4\cdot \:5\right)\right]$

$=4\cdot \:7+5\left(-5\right)\\=28+5\left(-5\right)\\=28-25\\=3$

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$=1+5\cdot \:3-3\left(7-4\right)\\=1+5\cdot \:3-3\cdot \:3\\=1+15-3\cdot \:3\\=1+15-9\\=16-9\\=7$