Решите уровнение:

1) - 12,7 + (х-5,3) = 0,9

2) 0,3 - (7,2+х) = - 1,5

3) 4 1/2 - (1,6-у) = 7

4) - 2 1/3 + (х-1/6) = - 4 5/9

1)

-12.7 + (x-5.3) = 0.9

-12.7+x-5.3=0.9

x-18=0.9

x=0.9+18

x=18.9

2)

0.3 - (7.2+x) = - 1.5

0.3-7.2-x=-1.5

-6.9-x=-1.5

-x=-1.5+6.9

-x=5.4

x=-5.4

3)

4 1/2 - (1.6-y) = 7

4.5-1.6+y=7

2.9+y=7

y=7-2.9

y=4.1

4)

-2 1/3 + (x-1/6) = - 4 5/9

-2 1/3+x-1/6=-4 5/9

x-2 1/2=-4 5/9

x=-4 5/9+2 1/2

x=-2 1/18