Remove unnecessary parenthesis.
-5k 3 - 6k +1 - 6k 2 + 5k (simplify each term) -15k - 6k + 1 - 12k +5k = -28k +1
Answer: 28k + 1
Your answer would come out to be y=7x-44
Which would be A, B, and D.
Those match up to that answer.
Answer:
add x to both sides. once you do this, you will get x+y=15
It can either be equivalent to 11 or 18.
