Answer:
wrong
Step-by-step explanation:
The division property states that when we have an equation in the form [tex]ax=b[/tex], then [tex]x=b/a[/tex](i.e. we "divide" by [tex]a[/tex] on both sides).
So, Mark was supposed to get [tex]x=9/23[/tex], which is not equal to [tex]6[/tex].
So, Mark solved it [tex]\boxed{wrong}[/tex]
