Odpowiedź:
[tex]a)\ \ -4\cdot(-2-11)=-4\cdot(-13)=52\\\\\\b)\ \ -7+2\cdot(-5)=-7-10=-17\\\\\\c)\ \ -11-12:(-6)=-11+2=-9\\\\\\d)\ \ -8-5\cdot(-4)-4\cdot(-6)=-8+20+24=-8+44=36\\\\\\e)\ \ \dfrac{7+(-15)}{-2}+\dfrac{-8}{-3-1}=\dfrac{7-15}{-2}+\dfrac{-8}{-4}=\dfrac{-8}{-2}+2=4+2=6\\\\\\f)\ \ \dfrac{-11-9}{-4}-\dfrac{6-12}{-3}=\dfrac{-20}{-4}-\dfrac{-6}{-3}=5-2=3[/tex]
