Question

Awnser the questions in the link please

Answer 1

1. x - 9

2. 3x - 2xy

3. 14t

4. -11x

5. -10xy

6. 15 - 20y

7. d + 6cd - 5c

8. ab - 2cd + cb

9. -20x

10. 7x + 25

11. 11k - 1

12. 5b - 8

Explanation:

1.

`-3(x + 3) + 4x = -3x - 9 + 4x = x - 9`

2.

`xy + 4x - 3xy - x = 3x -2xy`

3.

`4t + 10t = 14t`

4.

`-10x - x = -11x`

5.

`5(-2xy) = -10xy`

6.

`6(-2y) - 9 + 4(-2y + 6) = -12y - 9 -8y + 24 = 15 - 20y`

7.

`d + 3cd - 7c + 3cd + 2c = d + 6cd -5c`

8.

`ab - 2ac + cb`

9.

`-4(5x) = -20x`

10.

`4 + 7(x + 3) = 4 + 7x + 21 = 7x + 25`

11.

`-k + 3(4k - 1) + 2 = -k + 12k - 3 + 2 = 11k - 1`

12.

`5(b - 4) + 12 = 5b - 20 + 12 = 5b - 8`