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[982-27x(285;5-2x25)-38;2]X2=782;2X5+178

Răspuns :

CiobanuGabriela
[982-27x(285:5-2x25)-38:2]x2=782:2x5+178
=[982-27x(57-50)-38:2]x2=782:2x5-178
=(982-27x7-38:2)x2=782:2x5-178
=(982-189-19)x2=782:2x5-178
=(713-19)x2=782:2x5-178
=684x2=782:2x5-178
=1368=391x5-178
=1368=1955-178
=1368=1727
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