Question

which of the following is an example of an inequality?
○ 60 + 2x = 120
○ 60 + |-3| = 63
○ 60 - 2(15) = 130
○ 60 + 2x < 120

Explanation:

Step1: Recall inequality definition

An inequality uses symbols like \(<\), \(>\), \(\leq\), \(\geq\) (not \(=\)).

Step2: Analyze each option

• \(60 + 2x = 120\): Uses \(=\), equation.
• \(60 - 2(15)=130\): Simplifies to \(60 - 30 = 30

eq130\), but still an equation (checking equality).

• \(60 + |-3| = 63\): \(60 + 3 = 63\), equation (equality holds).
• \(60 + 2x < 120\): Uses \(<\), so it's an inequality.

Answer:

The option \(60 + 2x < 120\) (the fourth option, or the one with the \(<\) symbol)