Решите Уравнения

(2,34+х) - 8,5=4,72

(х-20,8) + 12,17=22,2

5,05 - (у-0,76) = 2,075

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