Răspunsuri

2014-10-16T19:53:32+03:00
(( X + 58) * 3 +4)*11 = 1991
((3*X + 3*58) + 4 ) * 11 = 1991
( 3*X +174+4) * 11 = 1991
(3*X + 178) * 11 = 1991
33*X + 178 * 11 = 1991
33*X + 1958 = 1991
33*X = 1991 - 1958
33*X = 33
X = 1