Question

Calcular el valor de las siguientes operaciones
combinadas:
a) -5 – [-17 + (15 -6)] + (-15 - 8) – {-1 + (8 - 9) + (7 - 10)}
b) -13 – {-4 + [9 + (-5 – 6 + 12) + (-2)] - 5}
c) -15 + {-3 – [8 – 4 + (6 - 1)] + 12 – [6 – (5 - 11)]}
d) -14 – {-9 – [15 – (16 + 31)] – [-12 + (-8 - 7)]}
e) –{4 – 15 – [7 – (3 – 2 - 6) - 8] – [-3 – (7 -
5)]}

Answer 1

Respuesta:

a) -15

b) -12

c) -15

d) -64

e) 0

Explicación paso a paso:

a) -5 – [-17 + (15-6)] + (-15-8) – {-1 + (8-9) + (7-10)}

-5 - [-17+(15-6)] + (-15-8) - {-1-1-3}

-5 - [-17+(15-6)] + (-15-8) +5

-5 - [-17+9] -23+5

-5+8-23+5

-28+13

-15

b) -13 – {-4 + [9 + (-5 – 6 + 12) + (-2)] - 5}

-13 - {-4 + [9+1-2] -5}

-13 - {-4+8-5}

-13+1

-12

c) -15 + {-3 – [8–4 + (6-1)] +12 – [6 – (5-11)]}

-15 + {-3 - [8-4+5] +12- [6+6)]}

-15 + {-3-9+12}

-15

d) -14 – {-9 – [15 – (16+31)] – [-12 + (-8-7)]}

-14 - {-9 - [15-47] - [-12-15]

-14 - {-9+32+27}

-14-50

-64

e) – {4-15 – [7 – (3-2-6) - 8] – [-3 – (7 -5)]}

- {4-15 - [7-5-8] - [-3-2]}

- {4-15+6+5}

0