anonymous
  • anonymous
x x-4 _ = ____ 2 3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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PhantomCrow
  • PhantomCrow
Are you asked to solve for x?
PhantomCrow
  • PhantomCrow
If this is a proportion, then first cross multiply and then solve for x.\[\frac{ x }{ 2}=\frac{ x-4 }{ 3 }\]\[3x=2(x-4)\]\[3x=2x-8\]
anonymous
  • anonymous
yeah

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PhantomCrow
  • PhantomCrow
See where you go from there.
anonymous
  • anonymous
this is the part where i get confused
PhantomCrow
  • PhantomCrow
Alright. Just use algebra to solve for x from this point\[3x=2x-8\]\[x=-8\]
PhantomCrow
  • PhantomCrow
It's a matter of isolating x via inverse operation.
anonymous
  • anonymous
where did the 2x go? what did you do to get rid of the 2x
PhantomCrow
  • PhantomCrow
I subtracted it from both sides. I'm trying to get to equal to something and that wont happen if the x's are on different sides of the equation. Since 2x was positive, I perform the opposite of it (subtraction) to both sides, thus cancelling it on the right and subtracting it from 3x on the left.
PhantomCrow
  • PhantomCrow
Are you familiar with solving one variable equations?
anonymous
  • anonymous
ohhh I was over thinking it thank you so much !!!
PhantomCrow
  • PhantomCrow
No problem.
anonymous
  • anonymous
ohhh I was over thinking it thank you so much !!!

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