jazzyfa30
  • jazzyfa30
|2x +3| -6 = 11
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[|2x+3|=17\]Then solve the two equations:\[2x+3=17\]and\[-2x-3=17\]
anonymous
  • anonymous
Just like the other problem: \[|2x+3|-6=11 \iff |2x+3|=17\]\[2x+3=17\]\[2x=14 \iff x = 7\]and\[2x+3=-17\]\[2x=-20 \iff x = -10\]Solutions: \[x=-10\]and\[x=7\]
jazzyfa30
  • jazzyfa30
x=10 and x=-7

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anonymous
  • anonymous
I got x=-10 and x=7...
jazzyfa30
  • jazzyfa30
so I just switch the signs on the answer
jazzyfa30
  • jazzyfa30
|4x + 2| + 6 =0 what about this one
anonymous
  • anonymous
\[|4x+2|=-6\] It's impossible, because |n| will be always positive. So thats no solution.
jazzyfa30
  • jazzyfa30
okay and this one |4x +2| =6
anonymous
  • anonymous
Same way as the first one. The two equations\[4x+2=6\]and\[4x+2=-6\]
jazzyfa30
  • jazzyfa30
x=1 and x=-2 right
anonymous
  • anonymous
Yep!
jazzyfa30
  • jazzyfa30
1more: |3x | if x =-2
anonymous
  • anonymous
Well, what is 3x if x=-2?
jazzyfa30
  • jazzyfa30
I think x=6
anonymous
  • anonymous
|3(-2)|=|-6| And |-6|=6 So it is 6, though x =/= 6
jazzyfa30
  • jazzyfa30
so, I'm right wow I do know this stuff.
anonymous
  • anonymous
That's ok; it takes a while.
jazzyfa30
  • jazzyfa30
2x -3 > 23 what about this I got 13

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