792:6=132
132:99=1.33
1.33 х -4<span>х=-5.32
</span>600-(-5.32)=605.32х
8-6=2, 12-5=7, 18-9=9, 14-8=6,15-7=8, 11-4=7
A+a+a>a+a,21+a>a+12,a+6+0=a+6
608.8..... ...............
1,8-1/18=<span>18/10-1/18=9/5-1/18=(9*18-5)/90=(162-5)/90=157/90=1 67/90</span>