1.30
2.33
3.77
4.70
5.73
6.37
7.307
8.370
9.703
10.337
11.377
1) 119*306=36.414, 36421-36414=7, 665*284=188.860, 188860*7=1322020
2)514*52=26728,26739-26728=11, 705*122=86.010, 86010*11=946110
Х=2у-3
5(2у+3)+у-7=0
10у+15+у-7=0
11у=-8
у=-8/11
х+16/11+3=0
х+1 5/11 +3=0
х=-4 5/11