Решите уравнения:

1) 2000/х = 40

2) y/70 = 5

3) (60 * a - 32) : 16 = 3

4) 75 - 960 : (b+39) = 55

5) 12 7/23 - (6 18/23 - t) = 3 21/23 + 5 19/23

6) (k - 5 3/14) + 8 13/14 = 15 - 3 9/14

1) x = 2000/40

x = 50

2) y = 70*5

y = 350

3) 60*a - 32 = 3*16

60*a - 32 = 48

60*a = 48 + 32

60*a = 80

a = 80:60

a = 1 1/3

4) 960: (b+39) = 75 - 55

960: (b+39) = 20

b+39 = 960:20

b+39 = 48

b = 48 - 39

b = 9

5) 12 7/23 - (6 18/23 - t) = 9 17/23

6 18/23 - t = 11 30/23 - 9 17/23

6 18/23 - t = 2 13/23

t = 6 18/23 - 2 13/23

t = 4 5/23

6) (k - 5 3/14) + 8 13/14 = 11 5/14

k - 5 3/14 = 10 19/14 - 8 13/14

k - 5 3/14 = 2 6/14

k = 2 6/14 + 5 3/14

k = 7 9/14