anonymous
  • anonymous
will give medals but pleaseeee help. Solve for x: 4 − (x + 2) < −3(x + 4) x < −7 x > −7 x < −9 x > −9
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
the first one
calculusxy
  • calculusxy
This is basically solving for x in a regular equation. So what you would just do is instead of having the less than symbol, you would place the equal sign.
anonymous
  • anonymous
@calculusxy wait ill do the work and show you where i am stuck at

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calculusxy
  • calculusxy
Okay
anonymous
  • anonymous
\[ 4-(x+2)<-3x-6\]
anonymous
  • anonymous
@calculusxy ^^^^
anonymous
  • anonymous
i don't know how to do with the other side do i take away the brackets and flip the sign of 4 to + and add the like terms ?
anonymous
  • anonymous
after the negative sign there is a 1 so multiply negative one by x and 2
anonymous
  • anonymous
so it would be -1x -2 ? @joquez14
calculusxy
  • calculusxy
Just like what @joquez14 said. what we can think is that before the parentheses, there is a -1 (negative because of the minus sign). \[4-1(x+2) <-3x + 12\] that means that you would have to do \[-1 \times x = -x\]and \[-1 \times 2 = -2\]
calculusxy
  • calculusxy
Now we can simplify it even further wit those two terms. \[-4 -x-2<-3x-12\]
calculusxy
  • calculusxy
Sorry i meant -12 not +12
anonymous
  • anonymous
okay so we add together -4 and -2 @calculusxy
calculusxy
  • calculusxy
yes to simplify that side
calculusxy
  • calculusxy
combine the like terms to make solving this easier
anonymous
  • anonymous
okay so we add the x's
calculusxy
  • calculusxy
so this is where you need to really cancel out an x from a side.
anonymous
  • anonymous
so it would be 6<-2x
calculusxy
  • calculusxy
\[-4-x-2=-3x - 12\] \[-6 - x=-3x - 12\] \[-6 =-2x - 12\]
calculusxy
  • calculusxy
yes you're correct
anonymous
  • anonymous
but then the answer would 4 and none of my answer choices are 4 ? did i do an error ?
anonymous
  • anonymous
****-3 i mean
calculusxy
  • calculusxy
what are your answer choices then?
anonymous
  • anonymous
they are at the top
calculusxy
  • calculusxy
oh sorry :\
anonymous
  • anonymous
its not supposed to ve - 2x i thought i think its supposed to be - 4x
calculusxy
  • calculusxy
@joquez14 if we did -3 + 1 it would equal to -2
anonymous
  • anonymous
yup thats what I'm getting -2
anonymous
  • anonymous
why you add one x was negative so u souldnt have added an positive 1
anonymous
  • anonymous
-1x+-3x ? @joquez14
anonymous
  • anonymous
ohhh -4
anonymous
  • anonymous
my point exactly
anonymous
  • anonymous
but how
anonymous
  • anonymous
aren't you suppose to do the inverse
anonymous
  • anonymous
im not to sure since were combining like terms
anonymous
  • anonymous
I wish I could give you all medals. You all have the right idea, it just looks like you got mixed up with the combining 4 − (x + 2) < −3(x + 4) Start by distributing 4 - x - 2 < -3x - 12 Combine like terms on the left 2 - x < -3x - 12 Add 3x to both sides 2 + 2x < -12 Subtract 2 from both sides 2x < -14 Divide both sides by 2 x < -7
anonymous
  • anonymous
oh yeah ur right
anonymous
  • anonymous
thank you so much guys literally all of you have been such a tremendous helppppppppp @joquez14 @calculusxy and thanks for clearing it up @peachpi
anonymous
  • anonymous
np

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