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a fost răspuns

178ori5-[950:5+2+(486:2+122ori3)+7]:4=

Răspuns :

178×5[190+2(243+366+7]:4=890-192+616:4=1314:4=328
890-[190+2+(243+366)+7]:4=
890-(190+2+609+7):4=
890-808:4=
890-202=688