Someone help and please make sure it’s right thank you :)

Answer:
D, 8
Step-by-step explanation:
[tex]7x-1=5x+15[/tex]
subtract [tex]5x[/tex] from both sides
[tex]2x-1=15[/tex]
add [tex]1[/tex] to both sides
[tex]2x=16[/tex]
divide both sides by [tex]2[/tex]
[tex]x=8[/tex]
plz mark me brainliest. ;)