anonymous
  • anonymous
Solve for x using the addition principle: -8+x= -24 would that be -8x=-24 which equals 3?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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cwrw238
  • cwrw238
you add 8 to each side of the equation -8 + x + 8 = -24 + 8
cwrw238
  • cwrw238
what happens to the lefthand side? - what does it simplify to?
cwrw238
  • cwrw238
-8 + 8 = ?

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anonymous
  • anonymous
16
cwrw238
  • cwrw238
no - 8 + 8 = 8 - 8 = 0
cwrw238
  • cwrw238
take the thermometer analogy: |dw:1359325143283:dw|
anonymous
  • anonymous
Sorry Im lost not good at this I need a tutor plus go back to grade school.
cwrw238
  • cwrw238
the temperature is -8 degrees then it rises 8 degrees to give 0 degrees 8 degrees is 'added'
cwrw238
  • cwrw238
do you see how the diagram relates to -8 + 8 = 0 ?
cwrw238
  • cwrw238
the reason I added 8 to left side was so we would only have x left -8 + 8 + x = 0 + x = x
anonymous
  • anonymous
yes I understand when you do it, but get frustrated when I try to do it my self.
cwrw238
  • cwrw238
practice simple examples and you'll gain confidence remamber to do the same operation ( + 8) to both sides of the equation an equation is like a balance
anonymous
  • anonymous
OK now we have x left so then it would be X=-24+8 I will ty.
cwrw238
  • cwrw238
right
cwrw238
  • cwrw238
|dw:1359325718145:dw|
anonymous
  • anonymous
so we still add 24+8 right?
cwrw238
  • cwrw238
no we add 8 to minus 24 (-24) check out the thermometer
cwrw238
  • cwrw238
if we add 1 to -24 that is go up 1 degrree it gets to -23 right?
cwrw238
  • cwrw238
and add 1 more dgree we get -22 right so what do we get to if we 8 to -24?
cwrw238
  • cwrw238
does that help?
anonymous
  • anonymous
so we would have -16?
anonymous
  • anonymous
if I look at your nice graft thats what I come up with.
cwrw238
  • cwrw238
right -16 is correct so we get x = -16 - though i dont think my graph is all that nice!! lol
anonymous
  • anonymous
so do I have to figure what x is yet or is that simplified enough?
cwrw238
  • cwrw238
no thats it x = -16 in algebra you need to get used to negative values and how to manipulate them
cwrw238
  • cwrw238
the solution to the equation is x = -16
anonymous
  • anonymous
I will for sure use your graft, because it makes sense to me.
anonymous
  • anonymous
OK I hope I can get use to this yikes....
anonymous
  • anonymous
ty for being patient with me :0) I need a drink now lol
cwrw238
  • cwrw238
ok remember that everything below the x ( horizontal axis) is negative also everything to left of the y-axis is negative |dw:1359326605166:dw|
anonymous
  • anonymous
OK ty so much...

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