Answer:
1. A 8x-12
2. L -10x+5
3. A 8x+12
4. W 18x-24
5. N -6x+8
6. M -16x-12
7. O -5x+15
8. O -6x+12
9. O 4x-10
10. O -20x+8
11. W -2x-6
12. E -6x+3
13. R -6x-12
Explanation
You just multiply the number out of the parentheses by each number inside. If it has a variable, in this case "x" then you just put "x" right after the number.
Example: 2(3x)= 6x
If there is just a negative out of the parentheses then you just change the sign.
Example: -(5x-3)= -5x+3