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Mathematics 7 Online
OpenStudy (anonymous):

Log function.. posting equation.

OpenStudy (anonymous):

\[\log_{2}3+\log_{2}x=\log_{2}5+\log_{2}(x-2) \] \[\log_{2}3x=\log_{2}5x-10 \] do i now divide each side by log(base)2?

OpenStudy (anonymous):

i think you helped w/ one of my last ones. @zepdrix

zepdrix (zepdrix):

Hmmmm if we can condense each side into a single log, then we can do some fun math from there. Do you remember this rule of logs? \[\log_{a}b +\log_{a}c=\log_{a}(bc)\]

zepdrix (zepdrix):

Oh yes, hello kitty looks familiar hehe!

OpenStudy (anonymous):

yes! @zepdrix

zepdrix (zepdrix):

You don't need to @zepdrix every time XD hah, just the first time. Since I have responded, it will now give me updates every time you post something, even if it doesn't have the @zepdrix tag c:

zepdrix (zepdrix):

So using that rule, how can you rewrite each side? :D

OpenStudy (anonymous):

i think i already got the combining part?

zepdrix (zepdrix):

Oh you did LOL im so slow :3 sorry bout that. didn't see that posted below your initial equation.

OpenStudy (anonymous):

so now solving for x, i'm lost as to taking the next step.

zepdrix (zepdrix):

|dw:1351732098072:dw|

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