Question

Решите Уравнения
(2,34+х)-8,5=4,72
(х-20,8)+12,17=22,2
5,05-(у-0,76)=2,075

Answer 1

1) (2,34+х)-8,5=4,72 
-6.16+x-4.72=0
-10.88+x=0
x=10.88
2) (х-20,8)+12,17=22,2
x-8.62-22.2=0
x-30.83=0
x=30.83
3) 5,05-(у-0,76)=2,075
5.05-y+0.76-2.075=0
5.81-y-0.075=0
3.735-y=0
y=3.735