answer:X=k/n-3
explain:move all terms to the left side and set equal to zero. then set each factor equ to zero!
I hope this helps
Answer:

Step-by-step explanation:

2(4-d+2d)=12
8-2d+4d=12
8+2d=12
2d=4
d=2
Answer:
I believe D is the correct answer.
Step-by-step explanation: