Question

срочно нужна помощь ​

Answer 1

Ответ:

41. х = 9

43. х = 10

45. х = 11

47. х = 12

Пошаговое объяснение:

41. 4х - 6 = 2х + 12

4х - 2х = 12 + 6

2х = 18      х = 18/2      х = 9

43. 3х + 3 = 2х + 13

3х - 2х = 13 - 3

х = 10

45. 9 - 3х = 20 - 4х

4х - 3х = 20 - 9

х = 11

47. 7х - 1 = 5х + 23

7х - 5х = 23 + 1

2х = 24

х = 24/2     х = 12

Answer 2

$41. \ \ 4x - 6 = 2x + 12 \\ \\ 4x - 2x = 12 + 6 \\ \\ 2x = 18 \\ \\ x = 9.$

$43. \ \ 3x + 3 = 2x + 13 \\ \\ 3x - 2x = 13 - 3 \\ \\ x = 10.$

$45. \ \ 9 - 3x = 20 - 4x \\ \\ 4x - 3x = 20 - 9 \\ \\ x = 11.$

$47. \ \ 7x - 1 = 5x + 23 \\ \\ 7x - 5x = 23 + 1 \\ \\ 2x = 24 \\ \\ x = 12.$