<span>925317-x*306=72801</span>
<span>306х=925317-72801</span>
<span>306х=852516</span>
<span>х=852516:306</span>
<span>х=2786</span>
Доброго Времени Суток ;)
<span>850-(2y-35)=50
850 - 2y + 35 = 50
-2y = 50 - 850 - 35
-2y = -835
y= -835 : (-2)
y= 417,5
Проверка :
</span><span>850-(2 * 417,5 -35)=50
</span>850 - (835-35) = 50
850 - 800 = 50
50 = 50