Răspuns:
[tex]a+b+c=87623\\\\a=4c/5\\\\b=a/2+5783= > b=4c/10+5783\\\\4c/5+4c/10+5783+c=87623 \\\\numitor .comun-10\\\\8c+4c+57830+10c=876230\\\\22c=876230-57830= > c=818400:22= > c=37200-spectatori.a3a.zi\\\\a=4*37200:5= > a=29760-spectatori.prima.zi\\\\b=4*37200:10+5783= > b=20663-spectatori.a2a.zi[/tex]