3(3х-2)=2|
9х-6=2|
9х= 8|
х=8/9
Ответ:8/9
Сначала сокращаем = - 2a - 11/30 b =
-2*5.5 - 11/30 *2 8/11 = - 11 8/15
1.33480:62=540
1.75+540=615
3.549900:780=705
4.520*615=319800
5.319800:205=1560
6.535095:705=759
7.1560-759=801
3643-1925+1322=1718+1322=369