(10,49-s):4,02=0,805
(10,49-s)=0,805*4,02
(10,49-s)=3,2361
s=10.49-3.2361
s=7,2539
Проверка
(10,49-7,2539):4,02=3,2361:4,02=0,805
0,805=0,805
(10,49-s):4,02=0,805
(10,49-s)=0,805*4,02
(10,49-s)=3,2361
s=10.49-3.2361
s=7,2539
Проверка
(10,49-7,2539):4,02=3,2361:4,02=0,805
0,805=0,805
2,4х=6,84
x=2,85
(y+26,1)*2,3=70,84
y+26,21=30,8
y=4,59
(10,49-s):4,02=0,805
10,49-s=3,2361
s=7,2539