Answer:

Step-by-step explanation:
![8x + c = k\\\\8x + c-c = k -c \ \ \ \ \ \ \ \ \ [\ subtract \ c \ from \ both \ sides \ ]\\\\8x = k - c\\\\\frac{8x}{8} = \frac{k-c}{8} \ \ \ \ \ [ \ divide \ both \ sides\ by\ 8 \ ]\\\\x = \frac{k-c}{8}](https://tex.z-dn.net/?f=8x%20%2B%20c%20%3D%20k%5C%5C%5C%5C8x%20%2B%20c-c%20%3D%20k%20-c%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5C%20%5B%5C%20subtract%20%5C%20c%20%5C%20from%20%5C%20both%20%5C%20sides%20%5C%20%5D%5C%5C%5C%5C8x%20%3D%20k%20-%20c%5C%5C%5C%5C%5Cfrac%7B8x%7D%7B8%7D%20%3D%20%5Cfrac%7Bk-c%7D%7B8%7D%20%5C%20%5C%20%5C%20%5C%20%5C%20%5B%20%5C%20divide%20%5C%20both%20%5C%20sides%5C%20%20by%5C%20%208%20%5C%20%5D%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7Bk-c%7D%7B8%7D)
Answer:
I only remember how to do part A, so sorry for using up an answer.
Step-by-step explanation:
Part A:

<em>(I also don't know if this is the form you need it in, but I hope I could help a little.)</em>
Answer:
ok
Step-by-step explanation:
1) x=-17
2) -1=x
3) (sorry don't know)
4) x=-20