Algebra

• When doing algebra with negative numbers where you would normally subtract to remove a number you add instead to cancel out the negative number.
• When doing algebra, to remove numbers from the equation remember these points: 1. The aim is to lower that number to zero to get rid of it, 2. What you do to one side of the equation you must do to the other, 3. To remove a number that is dividing an other multiply it by the same amount and vise versa for multiplication, 4. To remove a number that is being added subtract that number and again vise versa for subtraction.