Solving one step inequalities

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using inequality signs such as <, >, ≤, or ≥.

Front

What does the inequality sign '>' mean?

Back

The '>' sign means 'greater than'. For example, x > 5 means x is any number greater than 5.

Front

What does the inequality sign '<' mean?

Back

The '<' sign means 'less than'. For example, x < 3 means x is any number less than 3.

Front

What does the inequality sign '≥' mean?

Back

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

Front

What does the inequality sign '≤' mean?

Back

The '≤' sign means 'less than or equal to'. For example, x ≤ 10 means x is any number less than or equal to 10.

Front

How do you solve the inequality x + 5 > 7?

Back

Subtract 5 from both sides: x > 2.

Front

What is the solution to the inequality x + 9 > 21 when x = 15?

Back

True, because 15 + 9 = 24, which is greater than 21.

Front

What does 'at least 45' mean in inequality terms?

Back

It means x ≥ 45.

Front

How do you interpret the inequality 11 ≤ a?

Back

It means a is any number that is 11 or greater.

Front

Does the inequality sign flip when multiplying or dividing by a negative number?

Back

Yes, the inequality sign flips when you multiply or divide both sides by a negative number.