27×(12003-294735:35)+511×36=27×352+511×36=115110
Б)2х+х+2=5х+4
2х+х-5х=4+2
3х-5х=6
-2х=6
Х=-3
4 6
7 х5 7х7х7х7х5х5х5х5х5х5 35953125
--------- = ------------------------------ = --------------
3 35х35х35 42875
35
(9 - 15/7 * 14/9) * 15/34 = (9 - 10/3) * 15/34 = (8 3/3 - 3 1/3) * 15/34 = 5 2/3 * 15/34 = 5/2 = 2,5