Distribute
-12 -6a = -48
Add 12 to isolate -6a
-6a = -36
Divide by -6 on both sides to isolate a
a = 6
GCF= 1
FACTORED VERSION = (X-1) (2X+3)(X+2)
You’d add 65+79 to get 144 then subtract that from 180 and get 36 so X would be 36 :) hope this helped!
Socratic is a really good app for these type of questions! I definitely recommend. For science too!