Question

Помогите пожалуйста решить уравнения!!!

Answer 1

Ответ:

Пошаговое объяснение:

7)

4*13 + x = 4*(x+1)

52 + x = 4x + 4

4x - x = 52 - 4

3x = 48

x = 48 : 3

x = 16

=============

8)

2x + 3x + 24x = -116

29x = -116

x = -116 : 29

x = -4

============

9)

x + 5 - 5x = 10

-4x + 5 = 10

4x = -10 + 5

4x = -5

x = -5 : 4

x = 1,25

==============

10)

7*(x - 11) = x + 7

7x - 77 = x + 7

7x - x = 7 + 77

6x = 84

x = 84 : 6

x = 14

===========

11)

x - 4 = 2(x - 6)

x - 4 = 2x - 12

2x - x = 12 - 4

x = 8

Answer 2

Ответ:

7)

13+x/4=x+1

52+x=4x+4

x-4x=4-52

-3x= -48

x=16

8)

x/12+x/8+x= -29/6

2x+3x+24x= -116

29x= -116

x= -4

9)

x+5

____ -x=2

5

x+5-5x=10

-4x+5=10

-4x=10-5

-4x=5

x= -5/4

10)

x-11=x+7

___

7

7x-77=x+7

7x-x=7+77

6x=84

x=14

11)

x-4

____=2

x-6

x-4=2(x-6)

x-4=2x-12

x-2x= -12+4

-x= -8

x=8