Answer:
k = -1/4
Explanation:
I think they're just saying to put '2' in every place where you see an 'x' and then solve for k:


4k + 4 - 3 = 0
4k + 1 = 0
4k = -1
k = -1/4
Let's check if it works by putting in x = 2 and k = -1/4:

-1 + 4 - 3 = 0
0 = 0 So yes, the answer checks out.