Question

Represent the following sentence as an algebraic expression, where "a number" is the

letter x. You do not need to simplify.
Twice the difference of 1 and a number.

Answer 1

2(1 - x)

Explanation:

Twice the difference of 1 and a number

a number = x

The difference of 1 and a number is expressed as :

1 - x

Twice this difference, means the difference of (1-x) multiplied by 2

2 * (1 - x) = 2(1 - x)