fosilifer0ag

2023-03-08

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

planelmolarvh8

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

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