12 plus 6 times a number is 9 times the number | MathCelebrity Forum

12 plus 6 times a number is 9 times the number

math_celebrity

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12 plus 6 times a number is 9 times the number

The phrase a number means an arbitrary variable. Let's call it x.

6 times a number is written as:
6x

12 plus 6 times the number means we add 6x to 12:
12 + 6x

9 times a number is written as:
9x

The phrase is means an equation, so we set 12 + 6x equal to 9x
12 + 6x = 9x <-- This is our algebraic expression

If the problem asks you to solve for x, then you type this expression into our search engine and you get:
x = 4
 
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