Yeah Right?? Stop capping... Goku was not even flinching when Vegeta Transformed... Goku already mastered the SSJ3 and it's yet to be revealed in DB Daima how powerful Goku is in SSJ3 so no Vegeta is not 7x stronger. Use your brain. Akira Toriyama knew exactly what he has left us with... For those who watch dragon ball since the beginning knows that Goku is always a step ahead of vegeta no matter which situation.

Vegeta's fans just wished he was stronger but they forget that Goku is the most Training addicted character in Dragon Ball