ALEGEBRA-SOLVING EQUATIONS BY multiplication and division-130A Rule: You can multiply or divide the same number from both sides of an equation and the equation will still be equal. Note: The objective is to get the unknown ( x ) on one side of the equation by its self. Example 1 Example 2 a 2x = -8 --- = -5 -3 STEP 1. Divide by a number Multiply by a number . 2x -8 --- = --- a X -3 2 2 ------ = -5 X -3 STEP 2. Simplify. -3 x = -4 a = +15 STEP 3. Check equation. -4 X 2 = -8 15/-3 = -5 END