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simonsoleiro

  • 4 years ago

can somebody solve this

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  1. naf
    • 4 years ago
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    wht?

  2. simonsoleiro
    • 4 years ago
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    \[3^{3x+1}=9^{x-1}\]

  3. sheg
    • 4 years ago
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    hi simon how u doin?

  4. simonsoleiro
    • 4 years ago
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    not bad m8

  5. simonsoleiro
    • 4 years ago
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    yourself

  6. simonsoleiro
    • 4 years ago
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    stuck on this equation

  7. sheg
    • 4 years ago
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    \[3^{2x+1} = 3^{2(x-1)}\]

  8. sheg
    • 4 years ago
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    see here we have common base on both the sides so equate the powers \[2x + 1 = 2 \times (x - 1)\] then solve it for x

  9. simonsoleiro
    • 4 years ago
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    what does equate mean

  10. sheg
    • 4 years ago
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    means as base is same so the powers will be equal

  11. simonsoleiro
    • 4 years ago
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    look at the equation i wrot its 3^3x+1

  12. sheg
    • 4 years ago
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    no it will be \[9^{x-1} = 3^{2 \times (x-1)} = 3^{2x-2}\]

  13. sheg
    • 4 years ago
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    oh so sorry so in that case \[3x + 1 = 2x - 2\]

  14. simonsoleiro
    • 4 years ago
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    i got that bit so i add 2x and 3x

  15. sheg
    • 4 years ago
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    \[3x - 2x = -1 - 2 \] \[x = -3\]

  16. simonsoleiro
    • 4 years ago
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    yes i see now thank you my friend

  17. simonsoleiro
    • 4 years ago
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    did you add me on facebook

  18. sheg
    • 4 years ago
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    did u receieved my request

  19. simonsoleiro
    • 4 years ago
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    i havnt recieved it yet

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