1796630
33940680
30547192
5511820
7005866
4985544
14007166
12787616
14300926
12809861
.7575
552
239
(7x-5y)-(3x+2y)
410÷60
-2/k=3k/k
sen( π/6)
$\pi$ 8
\frac{x\ -2}{4}\ge \frac{9}{x\ +\ 3}
cos( π/6)
6-6