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282×356-(1210×100-168×154)×(10×10-9×11)=a+281×0-4736

Răspuns :

282×356-(1210×100-168×154)×(10×10-9×11)=a+281×0-4736
Putem face imultirile asa ca:
100392-(121000-25872)×(100-99)=a+0-4736
100392-95128×1=a-4736
100392-95128=a-4736
5268=a-4736
a=5264+4736
a=10000