Final answer:
When you multiply or divide both sides of an inequality by a positive number, it is similar to doing the same thing to an equation. The only difference is that you need to follow the same rules for multiplying or dividing each term on both sides of the inequality.
Step-by-step explanation:
Multiplication or division by the same number on both sides of an equation does not change equality. Remember that multiplication or division should apply to every term on either side of the equality. Enclose the side with more than one term in small brackets and then do the multiplication of division operation so that it applies to each term in the bracket. Multiplying both sides of the equation with leads to: