Question

Represent the following sentence as an algebraic expression, where “a number” is the letter x. You do not need to simplify 3 is multiplied by the difference of seven and a number

Answer 1

The given statement can be written algebraically as follow:

3(7 - x)

3 means '3 is multipled by' and the factor (7-x) means 'the difference of seven and a number'