So:
Let us simply the parenthesis first.
So we have \(\sf{(8-6x+12)}\)
We can rearrange the terms and get:
\(\sf{(8+12-6x)}\)
Which is equal to
\(\sf{(20-6x)}\)
So now we have to complete it by multiplying it all by 1/4 which is basically dividing it by 4.
So:
\(\sf{\frac{20-6x}{4}}\)
Simplifying that, we get:
\(\sf{5-\frac{6}{4}x}\)
And reducing that farther we finally get:
\(\sf{5-\frac{3}{2}x}\)
Which is your final answer :)
