To answer this question we will isolate the variable w.
Adding like terms in the given equation we get:
[tex]5w+16=9w-12.[/tex]Adding 12 to the above equation we get:
[tex]\begin{gathered} 5w+16+12=9w-12+12, \\ 5w+28=9w. \end{gathered}[/tex]Substracting 5w from the above result we get:
[tex]\begin{gathered} 5w+28-5w=9w-5w, \\ 28=4w. \end{gathered}[/tex]Dividing the above result by 4 we get:
[tex]\begin{gathered} \frac{28}{4}=\frac{4w}{4}, \\ 7=w. \end{gathered}[/tex]Answer:
[tex]w=7.[/tex]