Ответ:
Пошаговое объяснение:
3/7у+2/3у+у-2/3у=1 3/7у
1/6а+1 3/4а-1 2/9а=6/36а+1 27/36а-1 8/36а=25/36а
7 10/36к-(2 5/36к-1 4/36к)=7 10/36к-1 1/36к=6 9/36к=6 1/4к
(1 17/18х-1/2х-4/9х)+2 1/3=(1 17/18х-9/18х-8/18х)+2 1/3=1х+2 1/3
х+2 1/3=5/9+1 1/3=5/9+1 3/9=1 8/9
х+2 1/3=1,25+2 1/3=1 1/4+2 1/3=1 3/12+2 4/12=3 7/12
(9/7х-1/3)*21=2
27х-7=2
27х=9
х=1/3
41/42х*42=82
41х=82
х=2
10,3х=360,5
х=35