👤

80:20+3×[50+3×(350:7-98:2)]

Răspuns :

rezolvare :
4+3x(50+3x(50-49))=
4+3x(50+3x1))=
4+3x53=
4+159=163
80:20+3×[50+3×(350:7-98:2)]=
4+[50+3×(50-49)]=
4+3×[50+3×1]=
4+3×53=
4+159=163