Answer:
Can you give more information?
The correct answer is 2y-6 let me know if you want to know how I got that
The ANWSER is 2/4 I hope I helped
ANSWER

EXPLANATION
The given expression is

We regroup the numerical parts to get;

Now let us simplify the negative numbers.

We now subtract 19 from 42 to get;

We can't simplify further
Hence the simplest form is:

Answer:
I believe 4 but I'm not that good at math but 4