anonymous
  • anonymous
can somebody solve this
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
wht?
anonymous
  • anonymous
\[3^{3x+1}=9^{x-1}\]
anonymous
  • anonymous
hi simon how u doin?

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anonymous
  • anonymous
not bad m8
anonymous
  • anonymous
yourself
anonymous
  • anonymous
stuck on this equation
anonymous
  • anonymous
\[3^{2x+1} = 3^{2(x-1)}\]
anonymous
  • anonymous
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
anonymous
  • anonymous
what does equate mean
anonymous
  • anonymous
means as base is same so the powers will be equal
anonymous
  • anonymous
look at the equation i wrot its 3^3x+1
anonymous
  • anonymous
no it will be \[9^{x-1} = 3^{2 \times (x-1)} = 3^{2x-2}\]
anonymous
  • anonymous
oh so sorry so in that case \[3x + 1 = 2x - 2\]
anonymous
  • anonymous
i got that bit so i add 2x and 3x
anonymous
  • anonymous
\[3x - 2x = -1 - 2 \] \[x = -3\]
anonymous
  • anonymous
yes i see now thank you my friend
anonymous
  • anonymous
did you add me on facebook
anonymous
  • anonymous
did u receieved my request
anonymous
  • anonymous
i havnt recieved it yet

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