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b) -2 * (-7) + 44 : (-11) - 78 : (-39) = 14 - 4 + 2 = 12
c) 4 * (-4) - 13 * (-2) - 15 : 5 = -16 + 26 - 3 = 7
d) 6 - [7 * (-2) - (2-5)] = 6 - (-14 + 3) = 6 + 11 = 17
e) [(4-7) * (-3) - 20] * (-2) = (9 - 20) * (-2) = -11 * (-2) = 22
f) -40 : [-4 * (-3) - 5 * (7 - 3)] = -40 : (12 - 20) = -40 : (-8) = 5
g) -12 - [3 - 2 * (-14 + 5)] = -12 - (3 + 18) = -12 - 21 = -33
h) [10 * (-2) - 7 * 3] * (-4) = (-20 - 21) * (-4) = -41 * (-4) = 164
i) [-24 : (-6) - 7 * 4] : (-12) = (4 - 28) : (-12) = -24 : (-12) = 2
j) [-15 * (-5) + 10 * (-3)] : 9 = (75 - 30) : 9 = 45 : 9 = 5