anonymous
  • anonymous
How would you work this out? 2/3x = -2/3x +4 I haven't worked with fractions (this way) before, so I'm not sure how to do it.
Mathematics
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SOLVED
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katieb
  • katieb
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pooja195
  • pooja195
Are we isolating x?
anonymous
  • anonymous
Yes
pooja195
  • pooja195
Ok we we want x's on one side and numbers without the x on another Start by adding 2/3's to both sides 2/3x+2/3x=-2/3x+2/3+4

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Michele_Laino
  • Michele_Laino
hint: if I add \((2/3)x\) to both sides, I can write: \[\frac{2}{3}x + \frac{2}{3}x = - \frac{2}{3}x + 4 + \frac{2}{3}x\]
pooja195
  • pooja195
|dw:1449947094248:dw|
anonymous
  • anonymous
Mmk. So is this the same process as slope-intercept form?
pooja195
  • pooja195
Not sure what you mean by that. This doesnt have anything to do with that
anonymous
  • anonymous
In my school we figure out y=mx + b the same way this starts out, so I was wondering if we did it the same way or if it was a totally different process.
pooja195
  • pooja195
Ah ok i see what you mean :) 2/3+2/3= ?
anonymous
  • anonymous
1 1/3?
anonymous
  • anonymous
Or 4/3
pooja195
  • pooja195
4/3 is correct now we have 4/3x=4 Now we simply multiply by the reciprocal :) 4/3 flipped is 3/4 4/3 x 3/4=1 so just x x=4 x 3/4 \[\huge~\rm~4(\frac{ 3 }{ 4 })=? \]
anonymous
  • anonymous
Do I need to write it as an improper fraction/
pooja195
  • pooja195
No we are multiplying
anonymous
  • anonymous
Ohh, okay. Sorry, is it 3/1?
pooja195
  • pooja195
3/1= 3 x=3 well done
pooja195
  • pooja195
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anonymous
  • anonymous
Thank you so much!

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