9 subtracted from the product of 3 and a number is greater than or equal to 16 | MathCelebrity Forum

9 subtracted from the product of 3 and a number is greater than or equal to 16

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math_celebrity

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9 subtracted from the product of 3 and a number is greater than or equal to 16

  1. The phrase a number means an arbitrary variable, let's call it x
  2. The product of 3 and a number means we multiply 3 times x: 3x
  3. 9 subtracted from the product: 3x - 9
  4. The phrase is greater than or equal to means an inequality. So we set up an inequality with >= for the greater than or equal to sign in relation to 3x - 9 and 16
Our algebraic expression (inequality) becomes:
3x - 19 >= 16
 
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