This comes from subtracting 4 from both sides.
Answer:
i got you fam
Step-by-step explanation:
its b fam because the top x value goes by 1 then 2 and the y value goes from 2 to 4
18 wolves
30 wolves total
-12 wolves who joined
——-
18 wolves originally
Answer:
Given expression :
......[1]
Using distributive property: 
[1]⇒ 
Simplify:

Like terms are those terms which are same variables.
Combine like terms: we get;
......[2]

Simplify:
or
we can write equation [2] as;
Combine like terms of x variables;
Therefore, the expressions which are equivalent to the Given expression are:

Okay, you would need to distribute it.
It would be 3/4x - 3/4 = 10/8x - 20/8