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[1019+(837:3+528:4)]×2=

Răspuns :

[1019+(837:3+528:4)]×2=[1019+(279+132)]×2=
(1019+411)×2=1430×2=2860. Sper ca te-am ajutat .
(1019+(279+132))x2=
(1019+411)x2=
1430x2=2860