Question

Resolver los siguientes cálculos combinados:
A: (14 - 5 .8) .3 - (-35 + 77) : (3 - 10)=

B: (7 .5 + 7) : (-7) + 28 : (-14) - 63 : (-9)=

C: - 28 : (-4) . (-2) - (-42 + 70) : (-4) + 25=

D: (17 - 5 .4) . 6 : 2 + (5 .4 - 6) . (-5 + 7) - 20=​

Answer 1

(14-40)x3-(42):(-7)
-26x3-42:-7
-78+6=-72

(35+7):-7+28:-14-63:-9
42:-7+28:-14-63:-9
-6-2+7=-1

7x-2-28:-4+25
-14+7+25=18

-3x3+14x2-20
-9+28-20=-1