fosilifer0ag

2023-03-08

How to translate "9 less than three times a number" into an algebraic expression?

planelmolarvh8

Beginner2023-03-09Added 4 answers

"9 less than" indicates that you are taking 9 away from something.

"9 less than 12 is 3" would be written as $12-9=3$

The "something" in this instance is three times an undetermined number.

Call the number $x$

Three times the number is $3\times x=3x$

"9 less than this" is written as $3x-9$

"9 less than 12 is 3" would be written as $12-9=3$

The "something" in this instance is three times an undetermined number.

Call the number $x$

Three times the number is $3\times x=3x$

"9 less than this" is written as $3x-9$