Pre-Algebra, 2012
 SELECT PAGE NO. SELECT PROBLEM NO. FOR THE PAGE

 PAGE: 146 SET: Exercises PROBLEM: 3

The inequality is

Apply multiplication property of inequality: Multiply each side by 2.

(Cancel common terms)

(Multiply: )   (Multiply each side by negative one and flip the symbol)

(Product of two same signs is positive)

Graph the solution set on a number line.

Note: A circle means that this point is not included in the solution set.

Check:

To check, substitute a number greater than 16  in inequality .

(Substitute )

(Divide: )

The inequality is true.

The inequality solution set is .

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