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208:(112-(64-3xa)x4:23)=2

Răspuns :

208:(112-(64-3xa)x4:23)=2
112
-(64-3xa)x4:23=208:2
112-(64-3xa)x4:23=104
(64-3xa)x4:23=112-104
(64-3xa)x4:23=8
(64-3xa)x4=8x23
(64-3xa)x4=184
64-3xa=184:4
64-3xa=46
3xa=64-46
3xa=18
a=18:3=6