The article discusses how to adjust sewing machine tension when the tension on both sides of the fabric is not equal. The solution to this problem is to adjust the screw at the back of the machine called the “thread tension adjusting screw”. The article provides an example of how to adjust the tension by rotating the screw in the direction of the plus sign to increase tension on the right side and in the direction of the minus sign to increase tension on the left side. The article also notes that this adjustment is specific to Brother sewing machines and only applies to certain models. Readers are encouraged to comment and ask questions if they have any difficulties or concerns.