<span>18,5A - 148\3 + 6 = 2003
18,5A = 2003 + 148\3 - 6
18,5A = 1997 + 148\3
18.5A = 5991\3 + 148\3
18.5A = 6139\3
37\2A = 6139\3
111\6A = 12278\6
111A = 12278
<span>A = 110.6</span></span>
<span>(32-m)*6-39=45
192 - 6m - 39 = 45
-6m = -192+39+45
-6m = -108
m=</span><span><span>-108: -</span>18
</span><span><span>m=</span>18</span>
11/7 : -16/7 = 11/7 * -7/16(дробь перевернули) = -11/16