Question

aflati numerele
[(a+116:2)*3]*11=1991
(b:11-4):3-110:2=4

Answer 1

[(a+116:2)*3]*11=1991
  ( a + 58 ) · 3 = 1991 :11 
  ( a + 58) · 3 = 181 
a + 58 = 181 :3 
a= 181 / 3   -58 
a = ( 181 - 58· 3) / 3 = (181 - 174) / 3 = 7 /3 

(b:11-4):3-110:2=4 
( b :11 - 4) :3 - 55 = 4 
( b : 11 - 4) :3 = 55 + 4 
 b : 11 - 4 = 59 · 3 
  b :11 = 177 + 4 
b = 11 ·181 = 1991