7. Calculaţi:
a) [7•(-5) + (-3) - (-5)] : (-4);
c) [(-9)•6-(-8) •(-6)] : (-3);
e) [(-2)•(-8) + (-7)•4] :(-6);
14;
b) [(-8) •(–3) + (-2)•6]:(-2);
d) [(-9)• 5 -(-3)• (-9)] :(-8);
f) [(-8)•7 + (-6) (4)] : (4)•(2)

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