Solving Inequalities

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or equal to the other.

The symbol '>' means 'greater than'. For example, x > 5 means x is greater than 5.

The symbol '<' means 'less than'. For example, x < 3 means x is less than 3.

The symbol '≥' means 'greater than or equal to'. For example, x ≥ 4 means x is greater than or equal to 4.

The symbol '≤' means 'less than or equal to'. For example, x ≤ 2 means x is less than or equal to 2.

Divide both sides by 2: x < 5.

Subtract 4 from both sides: 3x > 6, then divide by 3: x > 2.

Add 7 to both sides: x ≤ 8.

It represents all numbers to the right of 9, not including 9 itself.

Draw a number line, place an open circle on 4, and shade to the left.