Write the following phrase as a variable expression. Use x to represent​ "a number".

the sum of -16 and a number
"the sum of -16 and a number"

-16 + x

To write the phrase "the sum of -16 and a number" as a variable expression using "x" to represent the number, we can use the addition operation.

The sum of -16 and a number can be represented as:

-16 + x

The variable expression for "the sum of -16 and a number" can be written as:

-16 + x