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[(10+2•3)•4-7•5]•3+200

Răspuns :

Gata aceasta este rezolvarea
Vezi imaginea LAURIT
[(10+2×3)×4-7×5]×3+200=
=[(10+6)×4-35]×3+200=
=(16×4-35)×3+200=
= (64-35)×3+200=
=29×3+200=
=87+200=
=287