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(99÷9+7)×10+[72+(a-2×44×3)]+1000=1355

Răspuns :

(99:9+7)×10+[72+(a-2×44×3)]+1000=1355
(11+7)×10+[72+(a-88×3)]+1000=1355
18×10+[72+(a-264)]+1000=1355
180+(72+a-264)+1000=1355
180+72+a-264+1000=1355
a=1355-180-72+264-1000
a=1175-72+264-1000
a=1103+264-1000
a=1367-1000
a=367