Answer
sometimes true
Work Step by Step
The given statement is sometimes true because if $b=3$, then the $y$-intercepts of the lines would be the same, providing at least one solution.
If the slopes of these lines were the same, the lines would be coinciding, causing an infinite amount of solutions.
If the slopes are different, the lines would have exactly one solution.
Since we do not know what the slopes are, we can conclude that if b=3, the statement would sometimes have one solution.
