9 less than 5 times a number is 3 more than 2x | MathCelebrity Forum

9 less than 5 times a number is 3 more than 2x

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9 less than 5 times a number is 3 more than 2x

The phrase a number means an arbitrary variable, let's call it x:
x

5 times a number means we multiply x by 5:
5x

9 less than 5x means we subtract 9 from 5x:
5x - 9

3 more than 2x means we add 3 to 2x:
2x + 3

The word is means an equation, so we set 5x - 9 equal to 2x + 3:
5x - 9 = 2x + 3 <-- This is our algebraic expression

If you want to solve for x, type this equation into the search engine, and we get:
x = 4
 
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