anonymous
  • anonymous
EASY FAN/MEDAL Solve for x: |2x + 6| − 4 = 20 A)x = 9 and x = 11 B)x = −9 and x = 15 C)x = 9 and x = −15 D)No solution
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
If my memory is correct, you would need to split this up into two problems: \[\left| 2x + 6 \right| -4 = 20\] and \[\left| 2x - 6\right|+4 =20\] Then solve for x for each equation...
anonymous
  • anonymous
fan and medal for the answer
anonymous
  • anonymous
wrong

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anonymous
  • anonymous
?
anonymous
  • anonymous
the answer is A
anonymous
  • anonymous
just do this on your calculator and you'll see... :)
anonymous
  • anonymous
thank you sooo much ^_^
anonymous
  • anonymous
np :)
myininaya
  • myininaya
\[|2x-6|-4=20 \\ \text{ add 4 on both sides } \\ |2x+6|=24 \\ \text{ this gives two equations to solve } \\ 2x+6=24 \text{ or } 2x+6=-24 \]

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