👤

Afla nr. necunoscute ;
527-(318+15):c+84=500
(93:3+d):2+117-39=211


Răspuns :

527-333:c=500-84
-333:c=416-527
-333:c= -111
c=333:111
c=3

(31+d):2=211+39-117
31+d=133x2
d=266-31
d=235