3.4*(2.15x-5.6)-2.3*(1.8х плюс 1.2)равно 0
7,31x-19,04-4,14x-2,76=0 3,17x-21,8=0 3,17x=21,8 x=21,8:3,17 x=6 278/317
=6целых 278/317
1) 3,4*(2,15х-5,6)-2,3(1,8х+1,2)=0 7,31х-19,04-4,14х-2,76=0 7,31х-4,14х=19,04+2,76 3,17х=21,8 х= 21,8:3,17 х= 21 8/10 : 3 17/100 х=218/10:317/100 х=218/10*100/317 х=2180/317 х=6 278/317.