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Miclosaura
a fost răspuns

7. Efectuati: a) 32-(3-24-5+18+6-27+6)-(-1+33+4 42-9+9);
b)-5+ (-12+7+35-16) - (17+23-54+1-23-11-26-3);
c) |-3+ 7-8+|-2+31-16+5--15+61-6)+5.​