Does social media have an influence on SEO?
Even though Google made a statement on how they do not take into account the number of times the pages of your website have been shared, social media influence the SEO in another way.
Google, Bing, Yahoo, and other search engines show search results based on relevance. The more a page is relevant for a specific keyword, the ranking of that page will be better.
The relevance of a particular page and website can be viewed in many ways, and of these ways are website visits, and the more visits your website gets (because you attract visitors using social media), you have a better chance to rank well.