Question

Resuelvan las siguientes operaciones combinadas separando
previamente en términos.

a) 5 • ( -7 +3 ) – 12 : (-4) + 20 : ( 1-6) =

b) 3 – ( 4 • 2 – 5 • 3) + ( -6 +3 ) • 8 =

c) -20 : (-2 -5 )+ (-14 ) + 6 • ( 8 -4 ) =

Answer 1

Explicación paso a paso:

a) 5 • ( -7 +3 ) – 12 : (-4) + 20 : ( 1-6) =

5 • -4 + 3 + 20 ÷ -5

-20 + 3 - 4 = -21

b) 3 – ( 4 • 2 – 5 • 3) + ( -6 +3 ) • 8 =

3 - (8 - 15) - 3 • 8

3 - (-7) - 24 = -14

c) -20 : (-2 -5 )+ (-14 ) + 6 • ( 8 -4 ) =

-20 ÷ -7 + (-14) + 6 • -4

20/7 - 14 + 24

20/7 + 10

suma de fracciones

20/7 + 10/1

20/7 + 70/7 = 90/7

Answer 2

Respuesta:

a) 5 • ( -7 +3 ) – 12 : (-4) + 20 : ( 1-6)

= 5 • ( -4 ) – 12 : (-4) + 20 : (-5)

= -20 -(-3) + (-4)

= -20 + 3 + (-4)

= -17 + (-4)

= -21

b) 3 – ( 4 • 2 – 5 • 3) + ( -6 +3 ) • 8

= 3 – ( 8 – 15) + (-3) • 8

= 3 - (-7) + (-3) • 8

= 3 - (-7) + (-24)

= 3 + 7 + (-24)

= 10 + (-24)

= -14

c) -20 : (-2 -5 )+ (-14 ) + 6 • ( 8 -4 )

= -20 : -2 - 5+ (-14 ) + 6 • ( 4 )

= 10 -5 + (-14) + 24

= 5 + (-14) + 24

= -9 + 24

= 15