anonymous
  • anonymous
Solve: |-7x| > 21 A. -3 < x < 3 B. -3 > x < 3 C. x > -3 D. x < -3 or x > 3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
absolute value
anonymous
  • anonymous
|dw:1358187824592:dw|
anonymous
  • anonymous
thank you that really explains it.:D

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anonymous
  • anonymous
No problem!
anonymous
  • anonymous
so would it be d?or c
cwrw238
  • cwrw238
7x > 21 so x > 3 now try solving the other inequation
cwrw238
  • cwrw238
-7x > 21
cwrw238
  • cwrw238
divide both sides by -7 is the first thing you do
anonymous
  • anonymous
ok
cwrw238
  • cwrw238
then what?
cwrw238
  • cwrw238
check out zaynaf's post
anonymous
  • anonymous
flip the sign
cwrw238
  • cwrw238
right

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