Question

How do you translate the word phrase into a variable expression: sum of 4 and a number?

Answer 1

`4+x`

Explanation:

Let any number be `x`

You could chose any letter you wish. I chose `x`

Breaking the question down into its component parts

"Sum" `" "->?+?`
"of 4 " `" "->4+?`
"and any number" `->4+x`