We have the next equation
[tex]3n+16=7n[/tex]First, we will subtract 7n on both sides
[tex]3n-7n+16=7n-7n[/tex][tex]-4n+16=0[/tex]then we subtract 16 on both sides
[tex]-4n+16-16=-16[/tex][tex]-4n=-16[/tex]Then we divide on both sides -4
[tex]\frac{-4}{-4}n=\frac{-16}{-4}[/tex][tex]n=4[/tex]ANSWER
n=4
