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(63-7×7+16):(2×4×9-6×6-26)×100×10-2090=

Răspuns :

30:10x100x10-2090=910
Rezolvare :

(63-7×7+16):(2×4×9-6×6-26)×100×10-2090=
=(63-49+16):(72-36-26)×1000-2090=
=30:10×1000-2090=
=3×1000-2090=
=3000-2090=
=910