<span>3200:(x-168)=25
</span>x - 168 = 3200 / 25
x - 168 = 128
x = 128 + 168
x = 296
<span>138:x+57=126
</span><span>138 : х = 126 - 57
</span><span>138 : х = 69
</span><span>х = 138 : 69
</span><span>х = 2</span>
<span>
</span>
Х=4,5 или х=-4,5
Х=1,8 или х=-1,8
Х=-25
4567*45=205515 кг. муки у Игоря