Answer:
cosA = 
Step-by-step explanation:
cosA =
=
=
= 
Answer:
It's linear
Step-by-step explanation:
X=2 I believe but I need to keep typing to make it longer
(2x - 6) - (10x - 7) # Starting expression
-8x - 1 # Combine like terms
Final answer:
-8x - 1
Hope this helps!