How do we express three less than a number?

2 Answers
Sep 23, 2016

Three less than a number #x# is #x-3#

Explanation:

The expression "less than" means substriction, so "three less than a number #x#" is #x-3#

Oct 3, 2016

a number subtract 3 #-># a number - 3

In algebra: let any number be #x# then we have #x-3#

Explanation:

See the answer