Question

Translate the following phrase to an expression the difference between 20 in

Answer 1

Difference means Subtraction

The difference between 20 and twice a number

Twice means times 2

The number is n

So the expression is

20 - 2n

At n = 3

20 - 2n = 20 - 2(3)

20 - 2n = 20 - 6

20 - 2n = 14

The answer is C