Answer:
(-∞, 29/7) ∪ (29/7, ∞)
Step-by-step explanation:
The only value of k that will make the system have something other than one solution is the value that puts it in the same proportion as the coefficients in the first equation.
3/21 ≠ k/29
k ≠ 29/7 . . . . . . multiply by 29 and simplify
So, "all values of k" will be ...
(-∞, 29/7) ∪ (29/7, ∞)
