Răspunsuri

2014-11-13T13:23:42+02:00
A+a+1+a+2+a+3+a+4=21*9+6
5a+10=195
5a=195-10=185
a=185/5
a=37

2014-11-13T13:36:50+02:00
a+a+1+a+2+a+3+a+4=21*9+6
5a+10=195
5a=195-10=185
a=185:5
a=37

a=37 b=38 c=39 d=40e=41
(37+38+39+40+41):21=9rest 6
195:21=9rest 6