Here you can solve for x the same way as if you're solving for x in a problem that has an equal sign.
[tex]3x+1<10\\ \\ 3x<10-1\\ \\ 3x<9\\ \\ x<\frac{9}{3} \\ \\ x<3[/tex]
That would be the answer when you solve it.
The graph for this is shown in the attached picture below.
Hope this helps!
