Answer:
Step-by-step explanation:
=> 20 + 12k - 7k - 8
=> 20 - 8 + 12k - 7k
=> 12 + 5k
Hence correct answer is 12 + 5k.
20 + 12k - 76 - 8
-64 + 12k
-4( 16 - 3k )
