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Calculati 46:23+{78-3×[(15+7×5]-3×7}
ma puteti ajuta ?


Răspuns :

46:23+[78-3x (50-21)
2+(78-3x29)
2+(78-87)
2+(-9
-7
46:23+{78-3x[(15+35)]-3x7}=2+[78-3x(50-21)]=2+(78-3x49)=2+(78-147)=2+(-69)=71 succes