Answer:
k= -0.2
Step-by-step explanation:
3+2(5k-3)=7 (original)
3+10k-6=7 (distribute 2 in (5k-3))
9+10k=7 (combine like terms 3+-6)
10k=-2 (subtract 9 on both sides to isolate k)
k=-0.2 (divide 10 on both sides to get you're answer/isolate k)
A.
Because the negatives cancel each other out to make a positive
Answer: b
Explanation: A and C are wrong because a negative times a positive is a negative
And D is wrong because a positive times a positive is a positive
