Знаменитые деятели культуры на кубани 19в ?

1) х-45=6²+14

х-45=36+14

х-45=50

х=50+45

х=95

2)19+8х=17×3

19+8х=51

8х=51-19

8х=32

х=32÷8

х=4

3)21-56÷х=13 |×х

21х-56=13х

21х+13х=56

34х=56

х=56÷34

х = 1 22/34

х=1 11/17

4)(х+17)×2=136

х×2+17×2=136

2х+34=136

2х=136-34

2х=102

х=102÷2

х=51

5)320÷(2х+50)=4 |×(2х+50)

320=4(2х+50)

4(2х+50)=320

8х+200=320

8х=320-200

8х=120

х=120÷8

х=15

6)(30-3х)÷3-8=0 |×3

(30-3х)-8×3=0×3

(30-3х)-24=0

30-3х-24=0

6-3х=0

3х=6

х=6÷3

х=2

7) 3у+8у=110

11у=110

у=110÷11

у=10

8)8х+5+2х=15

10х+5=15

10х=15-5

10х=10

х=10÷10

х=1

9)18у-у=34

17у=34

у=34÷17

у=2

10)6х+х+2х-1=17

9х-1=17

9х=17+1

9х=18

х=18÷9

х=2

УрАвнение

1) 19/20 - x =1/4
-х = 1/4 - 19/20
-х = 5/20 - 19/20
-х = - 14/20
х = 14/20
х = 7/10

2) x + 3/20=7/10 + 1/4
х + 3/20 = 14/20 + 5/20
х + 3/20 = 19/20
х = 19/20 - 3/20
х = 16/20 = 4/5

3) 3/4 - (x + 1/20) = 1/5
3/4 - х - 1/20 = 1/5
15/20 - х - 1/20 = 4/20
-х + 14/20 = 4/20
-х = 4/20 - 14/20
-х = -10/20
х= 10/20 = 1/2

4) (x - 1/2)-3/16=1/80
х - 1/2 - 3/16 = 1/80
х - 8/16 - 3/16 = 1/80
х - 11/16 = 1/80
х = 1/80 + 11/16
х = 1/80 + 55/80
х = 56/80 = 7/10

5) 3/2 - (x - 1/21) = 2/7
3/2 - х + 1/21 = 2/7
-х + 63/42 + 2/42 = 12/42
-х + 65/42 = 12/42
-х = 12/42 - 65/42
-х = - 53/42
х = 53/42 = 1 11/42

6)(21/34 - x) - 10/17=1/85
21/34 - х - 10/17 = 1/85
-х + 21/34 - 20/34 = 1/85
-х + 1/34 = 1/85
-х = 1/85 + 1/34
-х = 1/(17•5) + 1/(17•2)
-х = 2/170 + 5/170
-х = 7/170
х = -7/170

7) 7•(21+x)=175
21 + х = 175 : 7
21 + х = 25
х = 25 - 21
х = 4

8) (x-46):61=1
х - 46 = 61
х = 61 + 46
х = 107