9.2*(0.01*y+0.412)=4.6
0.01y+0.412=4.6/9.2
0.01y=0.5-0.412
0.01y=0.088
y=0.088/0.01
y=8.8
0.01*y+0.412=4.6:9.2
0.01*у+0.412=0.5
0.01*у=0.5-0.412
0.01*у=0.088
у=0.088:0.01
у=8.8
Ответ:8.8