0.6x=19-3y+0.2
x=(19.2-3y)*5/3
Б){x=32-5y
{0.5y-5/6=15*2/3-2x
0.5y-5/6=15*2/3-2(32-5y)
0.5y-5/6=5*2-64*10y
0.5y-10y=-54+5/6
-9.5y=-54+5/6
-9.5y=- 319/6
y=319/57
0.5*319/57-5/6=15*2/3-2x
1/2*319/57-5/6=5*2-2x
319/114-5/6=10-2x
112/57=10-2x
2x=10-112/57
2x=458/57
x=229/57
(x,y)=(229/57: 319/57)