SELECT b.name
FROM brands b
INNER JOIN products p
    ON b.id = p.brand_id
INNER JOIN transaction_sell_lines tr
    ON p.brand_id=tr.product_id

public function products(){
  return $this->hasMany(Product::class,'brand_id','id');
}

public function transactionSellLines(){
  return $this->hasMany(TransactionSellLines::class,'product_id','id');
}

Brand::with('products.transactionSellLines')->get();