Question

Calculeaza 4 × a-b : 3 + 5 × c + d : 6 stiind ca : a=(9000-75:5-8905):4 b=76×8×(2987-2986)-575 c=3000-(48×7-85:5)-2669 d=76:4+45×4+9:9-164

Answer 1

a = ( 9000 - 15 - 8905 ):4
a= 80 :4
a=20

b= 76 x 8 x 1 - 575
b= 608-575
b=33

c= 3000 - ( 336 - 17 ) - 2669
c= 3000 - 319 -2669
c=2681-2669
c=12

d= 19 + 180 + 1-164
d=200-164
d=36

4 x a-b :3 + 5 x c + d :6 =
4 x 20 -33 + 5 x 12 + 36 = 
80 - 33 + 60 + 36 =
47 + 60 + 36 = 143