Question

b) 5 + {−4 + 3 + (9 − 6) − [6 − 5 − (18 − 12)]} − (4 − 12) + 1

Answer 1

Respuesta:

$5+\left(-4\right)+3+\left(9-6\right)-\left[6-5-\left(18-12\right)\right]-\left(4-12\right)+1=21$

Explicación paso a paso:

$5+\left(-4\right)+3+\left(9-6\right)-\left[6-5-\left(18-12\right)\right]-\left(4-12\right)+1\\=5+\left(-4\right)+3+3-\left[6-5-\left(18-12\right)\right]-\left(4-12\right)+1\\=5+\left(-4\right)+3+3-\left(-5\right)-\left(4-12\right)+1\\=5+\left(-4\right)+3+3-\left(-5\right)-\left(-8\right)+1\\=21$