Question

Proszę o pomoc muszą być działania i sprawdzenia ​

Answer 1

Odpowiedź:

E. 9x=3x + 12

9x - 3x = 12

6x = 12 / : 6

x = 2

F. 10x = 4x - 6

10x - 4x = - 6

6x = - 6 /:6

x = - 1

G. 3x = 9 - 6x

3x + 6x = 9

9x = 9 /:9

x = 1

H.5x = 4x + 4

5x - 4x = 4

x = 4

E. 9x - 7 = 3x + 5

9x - 3x - 7 = 5

9x - 3x = 5 + 7

6x = 12 /:6

x = 2

F. 3 - 10x = 9 - 4x

3 - 10x + 4x = 9

- 10x + 4x = 9 - 3

-6x = 6 /:(-6)

x = - 1

G. 5 - 2x = 9 - 6x

5 - 2x + 6x = 9

-2x + 6x = 9 - 5

4x = 4 /:4

x = 1

H. -6 + 4x = 5x + 4

-6 + 4x - 5x = 4

4x - 5x = 4 + 6

-x = 10

x = - 10