Answer:
it's easy..here have a look at it.
Answer:
The correct answer is:
y= x-8
Step-by-step explanation:
We have the equation: 8 = x-y
By clearing the equation for y (subtracting x both sides of equation) we have:
8 - x = -y (1)
Multiplying (1) by -1
-8+x = y (2)
Re-arranging (2), finally we have:
y= x-8
B
but i have to write more to let me post this so here it is
Answer: 
Step-by-step explanation:

I believe 10c-4d would be your answer