5.084-2.963
7,01*4.95
8.5:5
6,046+7.296
7.890-4.259
9.56*9.3
10.07*1.25
64.4*18.8
4.20:0.7
8.1:0.09
25.5*6
14.8*96.8
35:0.007
4.09-2.95
7.61*3.804
23*6.7
14*58.88
95.7-4.03
6.15-4.81
9.65*2.25
Х+14=20+14
х=34-14
х=20
20+14=20+14
34=34
√2+x=4-x
x+x=4-<span>√2
2x=4-</span><span>√2
x=2- </span><span>√2/2</span>
L =2*3,14*2,25=14,13 (дм)