Помогите решить уравнения

е) 5x+21=3x+35

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

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

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

Е) 5x+21=3x+35

5 х-3 х=35-21

2 х=14|:2

х=7

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

-3 х+7 х+2 х=41-17

6 х=24|:6

х=4

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

2 х - 12=20-14 х

2 х+14 х=20+12

16 х=32|:16

х=2

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

5 х-12-2 х+2=15-6 х+4 х

5 х-2 х+6 х-4 х=15+12-2

5 х=25|:5

х=5.

Пошаговое объяснение:

e) 5x + 21 = 3x + 35;

5x-3x = 35 - 21;

2x = 14;

x = 14 / 2;

x = 7;

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

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

6x = 24;

x = 24 / 6;

x = 4;

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

2x - 12 = 20 - 14x;

2x + 14x = 20 + 12;

16x = 32;

x = 32 / 16;

x = 2;

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

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

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

5x = 25;

x = 25 / 5;

x = 5.