Răspuns:
exercitiul 1)
[tex]a = (4+5:5-3):2=> a = 2:2 =>a = 1\\b=11-6:[5-4:(7-5:1)]\\\\b=11-6:(5-4:2)\\\\b = 11-6:3\\\\b = 11-2\\\\b = 9\\\\c=[(8+8):4-3]*(9-3*3)\\\\c = (16:4-3)*(9-9)\\\\c= (4-3)*0\\\\c = 1*0\\\\c = 0[/tex]
[tex]3a-b:3+3*c\\\\3*1-9:3+3*0\\\\3-3+0\\\\0[/tex]
exercitiul 2
[tex]a+b=1200\\\\a>b\\\\a-b=b=>a = 2b\\\\2b+b=1200\\\\3b=1200\\\\b = 400\\\\a = 1200-400\\\\a = 800[/tex]
