Răspuns:
94 326-123×8:[848:4-(a
×100+5×2)]+838 149:3=373 217
94 326-984:[212-(a x100+10)]+279 383=373 217
94 326-984:[212-(a x100+10)=373 217-279 383
94 326-984:[212-(a x 100+10)=93 834
984:[212-(a x 100+10)=94 326-93 834
984:[212-(a x 100+10)=492
212-(a x 100+10)=984:492
212-(a x 100+10)=2
(a x 100+10)=212-2
(a x 100+10)=210
a x 100=210-10
a x100=200
a=200:100
a =2
