oblicz: a) (-4)+(-7)-(-5)=..... 12-(-6)+(-20)..... (-103)-(-12)-(57)=..... b) (-3)-(-5)+(-9)-4=..... 13-15-(-23)+(-30)+..... (-40)+(-35)-50-(-65)=..... prosze mam na jutro
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a) (-4)+(-7)-(-5)=.-6
12-(-6)+(-20)=-2
(-103)-(-12)-(57)=-148
b) (-3)-(-5)+(-9)-4=-11
13-15-(-23)+(-30)=-9
(-40)+(-35)-50-(-65)=-60
-4+[-7]-[-5]= -6
12-[-6]+[-20]= -2
[-103]-[-12]-57= -148
[-3]-[-5]+[-9]-4= -11
13-15-[-23]+[-30]= -9
[-40]+[-35]-50-[-65]= -60