Răspuns :
( x + 217 ) : 100 + 1980 = 2000
( x + 217 ) : 100 = 20
x + 217 = 2000
x = 1783
( x + 217 ) : 100 = 20
x + 217 = 2000
x = 1783
[(a+217)/100]+1980=2000
(a+217)/100=20
a+217=2000
a=2000-217=1783
(a+217)/100=20
a+217=2000
a=2000-217=1783