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b) = -40
c) = -4
d) = -28
e) = 30
f) = -24
g) = -13
h) = -15
i) = -12
b) 50+(-70)-20 = -20-20 = -40
c) (-15)+27-16 = 12-16 = -4
d) 32+(-18)-42 = 14-42 = -28
e) 45-(-5)+(-20) = 40+(-20) = 20
f) (-21)-(-29)-32 = 8-32 = -24
g) (-16)+(-14)-(-17) = -30-(-17) = -13
h) (-41)+52-(-26) = 11-(-26) = 37
i) (-18)+39+(-9) = 21+(-9) = 12
Prosze ;d