Home > CCA2 > Chapter 3 > Lesson 3.2.2 > Problem 3-81
3-81.
Solve each of the following inequalities for the given variable. Represent your solutions on a number line.
When you divide both sides of an inequality by a negative number,
it reverses or 'flips' the sign. Here is an example of why that works:true statement
multiply both sides by
statement is no longer true
reverse the inequality sign to make it true
This also works with division by a negative number.Add
to both sides. Divide both sides by
.
Did you remember to reverse the inequality sign?