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anonymous

  • 5 years ago

how do i solve log(3x+5)=2?

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  1. anonymous
    • 5 years ago
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    do you know how to get rid of a log?

  2. anonymous
    • 5 years ago
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    like make it ln?

  3. anonymous
    • 5 years ago
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    if you raise 10 to the log of some number, it just equals that number

  4. anonymous
    • 5 years ago
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    ohhhh well i dont have a calculator with me...

  5. anonymous
    • 5 years ago
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    you don't need one

  6. anonymous
    • 5 years ago
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    okay well i have no idea how to solve it..

  7. anonymous
    • 5 years ago
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    10^(logx) = x

  8. anonymous
    • 5 years ago
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    10^(log(x+2)) = x+2

  9. anonymous
    • 5 years ago
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    10^2 = 100

  10. anonymous
    • 5 years ago
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    so how would i do log(3x+5)=2?

  11. anonymous
    • 5 years ago
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    10^(log(3x+5)) = 10^2

  12. anonymous
    • 5 years ago
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    what does ^ mean? lol

  13. anonymous
    • 5 years ago
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    raise to a power

  14. anonymous
    • 5 years ago
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    so 10^2 means 10 squared

  15. anonymous
    • 5 years ago
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    ohhhh!

  16. anonymous
    • 5 years ago
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    okay so then what would the answer be? cause idk how to evaluate it without a calc.

  17. anonymous
    • 5 years ago
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    3x+5 = 100

  18. anonymous
    • 5 years ago
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    ohhh okay thank you!

  19. anonymous
    • 5 years ago
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    yw

  20. anonymous
    • 5 years ago
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    so would it be the same thing for log160-log5?

  21. anonymous
    • 5 years ago
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    it wouldn't be, but look wher you posted the question for the answer

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spraguer (Moderator)
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