anonymous
  • anonymous
for the equation |-1 + x| = 5 would the answer be four or six? I can't figure it out.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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welshfella
  • welshfella
the vertical lines around the left side of the equation mean the absolute value - that means the positive value is taken even if the inside part is negative
welshfella
  • welshfella
so we write 2 equations -1 + x = 5 and -1 + x = -5 solve these 2 for x
anonymous
  • anonymous
@welshfella I know! I got 4 from that but my friend whose on the same lesson said it was 6 so i'm slightly confused

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More answers

welshfella
  • welshfella
there are 2 solutions -1 + x = 5 gives x = 6 and -x + 1 = -5 gives x = -4
welshfella
  • welshfella
sorry the last ones is wron -x + 1 = -5 -x = -4 x = 4
welshfella
  • welshfella
so the 2 solutions are 4 and 6
Rizags
  • Rizags
i believe its -4, 6
anonymous
  • anonymous
should i put both as an answer then?
myininaya
  • myininaya
yes -1+x=-5 should give x=-5+1
Rizags
  • Rizags
both are correct
welshfella
  • welshfella
yes - i made a typo when i wrote the second equation down
myininaya
  • myininaya
|-1+x|=5 gives -1+x=5 or -1+x=-5
welshfella
  • welshfella
yes i wrote -x + 1 = -5 instead of -1 + x = -5
welshfella
  • welshfella
-4 , 6 is correct

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