(8.61 - 3 3\4)+у =12.1
8.61-3.75+y=12.1
y=12.1-8.61+3.75
y=7.24
(7.43-2 3\25)+ х =7
7.43-2.12+x=7
x=7-7.43+2.12
x=1.69
(8.61 - 3 3\4)+у =12.1
8.61-3.75+y=12.1
y=12.1-8.61+3.75
y=7.24
(7.43-2 3\25)+ х =7
7.43-2.12+x=7
x=7-7.43+2.12
x=1.69