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sagesstillneedtolearn

|2x+1|-3>6

  • one year ago
  • one year ago

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  1. sagesstillneedtolearn
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    i would like someone to walk me through how to solve these types of equations.

    • one year ago
  2. sagesstillneedtolearn
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    |2x+1| > 6 = -3 ?

    • one year ago
  3. sagesstillneedtolearn
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    ohhh, my bad lol but why start with the 3?

    • one year ago
  4. honey26
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    |2x+1|>6+3 we know that |x|>a(a is a constant) is nothing but -a<x<a. so here it is -9<2x+1<9 then -10<2x<8 this implies -5<x<4.This is the range of x which satisfies the given inequality.

    • one year ago
  5. Chlorophyll
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    Can you simplify it?

    • one year ago
  6. sagesstillneedtolearn
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    |2x+1| > 9

    • one year ago
  7. sagesstillneedtolearn
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    correct?

    • one year ago
  8. Chlorophyll
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    The absolute value always have 2 cases: positive value 2x+1 > 9 Can you solve it?

    • one year ago
  9. sagesstillneedtolearn
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    -4 ; 4 ?

    • one year ago
  10. Chlorophyll
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    2x+1 > 9 x > (9 -1)/2 = 8/2 = 4

    • one year ago
  11. Chlorophyll
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    second case is negative value, pay attention that the direction changed: 2x+1 < -9

    • one year ago
  12. sagesstillneedtolearn
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    im a bit confused, sorry.

    • one year ago
  13. sagesstillneedtolearn
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    alright, thankyou very much :D i'll be back later with more equations to practice with.

    • one year ago
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