Solving A One-sided Inequality 1

Inequalities are similar to equations.  What is done to one side of the inequality must be compensated for on the other side.  The notable dissimilarity in arithmetic operations in inequalities is when multiplying or dividing by a negative quantity.  In such cases. the inequality sign is reversed.

Solve the inequality and express your answer by using number line notation:

x+6>4

To solve for x, subtract 6 from both sides of the inequality:

x+6 > 4
  - 6   -6

The resulting inequality is:

x>-2

<---------------(-------------->
                     -2