А) 14х = -42 b) 2x – 16 = 0
c) 8x – 17 = 23
d) 5х = 210 + 12х
е) 5х + 21 = 3х + 25
17 – 3х + 7x = 31 - 2x + 10
g) 2x – 12 = 2(10 – 7x)
h) 5х – 12 - 2(х – 1) = 3 (5 - 2x) + 4х
а) 14 + х = 2
е) x + 21 = 3 – 5х
b) 2x + х – 16 = 2 f) 17x – 3+ х = 12 - 2х + 5
c) 8 – 17x = 25 g) 2 (х – 12) = 210 – 7х
d) 5 – х = 20 + 2х h) (5х – 1) 2 - 2x – 3 = 35 - 3 (2х + 4)​

а) 14х = -42

х= -3

b)2х – 16 = 0

2х=16

х=8

c)8х= 23+17

8х= 40

х=5

d)5x= 210+12x

5x-12x=210

-7x=210

x=-30

e) 5x+21=3x+25

5x-3x=25-21

2x=4

x=2

f)17-3x+7x=31-2x+10

-3x+7x+2x=31+10-17

6x=24

x = 4

g)2x-12=2(10-7x)

2x-12=20-14x

2x+14x=20+12

16x=32

x=2

h)5x-12-2(x-1)=3(5-2x)+4x

5x-12-2x-2=15-6x+4

5x-2x+6x=15+4+12+2

9x=33

x=3.6

a)14+x=2

x=

e)x+21=3-5x

x+5x=3-21

6x=-18

x=-3

b)2x+x-16=2

2x+x=2+16

3x=18

x=6

f)17x-3+x=12-2x+5

17x+x+2x=12+5+3

20x=20

x=1

c)8-17x=25

-17x=25-8

-17x=17

x=-1

g)2(x-12)=210-7x

2x-24=210-7x

2x+7x=210+24

9x=234

x=26

d)5-x=20+2x

-x-2x=20-5

-3x=15

x=-5

h)(5x-1)2-2x-3=35-3(2x+4)

10x-2-2x-3=35-6x-12

10x-2x+6x=35-12+2+3

14x=18

x=1.28