Question

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

Answer 1

Hola

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$\\ 1 + 5 \times [4 \times 7 + 5 \times (15 - 4 \times 5)] - 3 \times (7 - 4)$

$1 + 5 \times 3 - 3 \times (7 - 4)$

$1 + 5 \times 3 - 3 \times 3$

$1 + 15 - 3 \times 3$

$1 + 15 - 9$

$\boxed{ - 7}$

Saludos.