If you need to simplify the equation it would be:

+2r-2n+7
If not sorry..
Hope This Helps!
Answer:X=-15
Step-by-step explanation:
-4x/5=12
5x-4x/5=5x12
-4x=5x12
-4x=60
-4x/-4=60/-4
x=-15
Y= 12 - x
27 + 3( 12 - x ) = 2x
6a=54 so a=54/6, a=9
b-a=14, and using a found above...
b-9=14
b=23, so a=9 and b=23 so
ab=9(23)=207