2016 - 100 . (x +11)= 27 :23
2016 - 100 . (x +11)= 24
2016 - 100 . (x +11)=16
100 . (x +11)= 2016 - 16
100 . (x +11)= 2000
x + 11 = 2000 : 100
x + 11 = 20
x = 20 - 11
x = 9
(=) 2016 - 100x + 1100 = 16
(=) -100x = 16 - 2016 - 1100
(=) -100x = -3100
(=) x = -3100 : (-100)
(=) x = 31
2016 - 100 . ( x + 11 ) = 2^7 : 2^3
2016 - 100 . (x + 11 ) = 2^4
2016 - 100 . (x + 11) =16
100 . (x +11 ) =2016 -16
100 . (x + 11) = 2000
x + 11 = 2000 : 100
x +11 = 20
x = 20 -11
x = 9