ShadowCain
  • ShadowCain
The product of 9 and a number is 12 less than three times that number. What is the number?
Mathematics
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SOLVED
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schrodinger
  • schrodinger
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Directrix
  • Directrix
Let x be the number. The product of 9 and the number is: 9x
Directrix
  • Directrix
Three times that number is 3x 12 less than three times that number is 3x - 12
ShadowCain
  • ShadowCain
9x=3x-12 6x=-12 x=-2

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Directrix
  • Directrix
Your task: To solve the equation: 9x = 3x - 12 @ShadowCain
ShadowCain
  • ShadowCain
9x = 3x - 12 = -2
Directrix
  • Directrix
>> 9x = 3x - 12 = -2 You lost the variable x. |dw:1443905024059:dw|
Directrix
  • Directrix
@ShadowCain Do you agree?
ShadowCain
  • ShadowCain
That's what I meant, I just didn't put x = -2 But the answer was right, right?
Directrix
  • Directrix
Correct.
ShadowCain
  • ShadowCain
thanks
Directrix
  • Directrix
You are welcome.

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