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afla valoare lui a(2728-a×3)÷14=125

Răspuns :

(2728-ax3):14=125
2728-3a=125-14
-3a=1750-2728
-a=-978:3
a=326

(2728-a×3)÷14=125=><br />2728-3a=125×14=><br />2728-3a=1750=><br />-3a=1750-2728=><br />-3a=-978=><br />a=-978÷-3=><br />a=326