Answers for "create new laravel 7 app with"

Laravel 7 create-project

composer create-project --prefer-dist laravel/laravel blog "7.*"

laravel create project

After Installing Composer 

composer create-project laravel/laravel myproject

//for authentication using jetstream etc.

composer require laravel/jetstream

//set database in .env file
php artisan migrate

php artisan serve