Question

The phrase "the difference between a number and 2" can be written as which variable expression?

A.) 2 + x
B.) x - 2
C.) 2x + 2
D.) 2x - 2

Answer 1

B.) x-2
The difference between (subtract) a number (x) and 2

Answer 2

For this case, the first thing we must do is define a variable.

We have then:

x: unknown number.

We want to write the following expression in algebraic form:

"the difference between a number and 2"

By writing the sentence in algebraic form we have:

x - 2

Answer:

A variable expression for the phrase is given by:

B.) x - 2