Question

va rog aflati nr necunoscute

Answer 1

(525:5+b):5+12=790
(105+b):5+12=790
(105+b):5=790
105+b=790x5
105+b=3950
b=3950-105
b=3845
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(65x502:10-c-63):3=600
(65x502:10-c-63)=600x3
(65x502:10-c-63)=1800
(32630-c-63)=1800
32630-c=1800+63
32630-c=1863
c=32630-1863
c=30767