Решите уравнения Решите уравнения

Пошаговое объяснение:

7x + 8 = -5x - 6

7x + 5x = -6 - 8

12x = -14

x = -14 : 12

x = -1 2/12

x = -1 1/6

13x - 7 = 8x + 3

13x - 8x = 3 + 7

5x = 10

x = 10 : 5

x = 2

-8 - 6x = -4 - 4x

6x - 4x = -8 + 4

2x = -4

x = -4 : 2

x = -2

-9 + 4x = 6 + 3x

4x - 3x = 6 + 9

x = 15

5 -(7x - 8) = -1

5 - 7x + 8 = -1

13 - 7x = -1

7x = 13 + 1

7x = 14

x = 14 : 7

x = 2

5*(2x - 3) = -2x + 7

10x - 15 = -2x + 7

10x + 2x = 7 + 15

12x = 22

x = 22 : 12

x = 1 10/12

x = 1 5/6