Problem 25 - Introductory Algebra for College Students

Question

Write each English phrase as an algebraic expression. Let the variable \(x\) represent the number. four more than a number

Step-by-Step Solution

Answer

The algebraic expression for the English phrase 'four more than a number' is \(x + 4\).

Step 1: Identify the variable in the phrase

The phrase indicates a certain 'number', but does not specify what it is. So, we let the variable \(x\) represent that number.

Step 2: Identify the operation(s) in the phrase

'Four more than a number' suggests an addition operation. Therefore, we have to add 4 to our variable.

Step 3: Write the algebraic expression

Following the clues in the phrase, we get the expression \(x + 4\), meaning 'four more than the number \(x\)'.