Oblicz:
a) -(-½) × (-8) + 8½ ÷ (- ⅔) =
b) -3 × 5,5 + 2,2 - (-6,4) ÷ 2 =
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a) -4 + 16/2 * (-3/2) = -4 - 24/2 = -4 - 12 = -16
b) -16,5 + 2,2 - (-3,2) = -13,3 + 3,2 = -10.1