anonymous
  • anonymous
14-x>0?????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
-x>-14 multiply by -1 and change > into < x<14
anonymous
  • anonymous
do you get it?
anonymous
  • anonymous
so its not 14

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More answers

anonymous
  • anonymous
14-x>0 add -14 to both sides... equation becomes... 14-14-x>-14 0-x>-14 -x>-14 multiply by -1 and change > into < x<14
anonymous
  • anonymous
no it is not 140 -1>0 ---> And this is wrong ! That's why x<14 is correct :D
anonymous
  • anonymous
bless you my good man/woman.
anonymous
  • anonymous
man hahaha.. :P you too my friend , Glad to help ;)
amistre64
  • amistre64
ida just added x to each side
anonymous
  • anonymous
but then won't you have to swap the inequality?
anonymous
  • anonymous
why not?
amistre64
  • amistre64
the only need to swap an inequality is if you multiply or divide by a negative; i try to avoid that in general
amistre64
  • amistre64
14-x > 0 +x +x --------- 14 > x
anonymous
  • anonymous
does swap means ... never mind, I thought something else, (since I'm not British/American .. I don't understand some words) swap= change right??
anonymous
  • anonymous
you mentioned avoiding swapping the inequality signs, now? using the same method you posted
anonymous
  • anonymous
yes@kreshink to swap is to change
anonymous
  • anonymous
@st like @ami said ... you change\swap the sign ONLY when you multiply by negative number ! otherwise you don't have to.... (you shouldn't )
amistre64
  • amistre64
in the end, the math works the same as long as you apply it correctly :)
anonymous
  • anonymous
but @amistre64 said he/she tries to avoid to swapping, i took that to mean, theres another ways of solving compound inequalities that involve division or multiplication with swapping signs
amistre64
  • amistre64
in general, you always "turn the equality" sign around when you multiply or divide by a negative number to keep everything in order. They dont teach you this when using the "=" sign since it rather pointless to turn it around.
amistre64
  • amistre64
\[-7 < 3\] \[-7(-1) < 3(-1)\] \[7< -3;\ \text{ unless we flip the sign this statement is false}\] \[7> -3;\ \text{ now its true}\]
anonymous
  • anonymous
yes
amistre64
  • amistre64
if we simply go about it with addition and subtraction we get: -7 < 3 +7 +7 ------- 0 < 7+3 -3 -3 -------- -3 < 7 ; no need to flip a sign when adding and subtracting is involved
anonymous
  • anonymous
sick
anonymous
  • anonymous
14-x\[14->0\] -x\[-x >14\] \[x/->14/-\] \[x <14\]

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