Answer:

Step-by-step explanation:
I supposed that is a "n".
Steps as below:

I)
8 - 3x = 23
-3x = 15
x = -5
ii)
5x - 16 = 34
5x = 50
x = 10
iii)
2 - 5x = -3
-5x = -5
x = 1
Answer:
the answer is 40%
Step-by-step explanation:
So there are 52 horses
12 of them are white
how many are black?
52 - 12 = 40
there are 40 black horses
12 white horses to 40 black horses
12:40
12/40
Hope this helps :)
Your answer is going to be
(×+4) times (×+3)
Hope that helps you.