ANSWER
[tex]8x - 6[/tex]
EXPLANATION
We want to simplify;
[tex]3(x - 2) + 5x[/tex]
First expand the parenthesis, to obtain;
[tex]3x - 6 + 5x[/tex]
Next, group similar terms to get,
[tex]3x + 5x - 6[/tex]
Combine the similar terms to get,
[tex]8x - 6[/tex]