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EyadBest ResponseYou've already chosen the best response.1
Try to show you work :) Whenever you stop i will help ..
 one year ago

EyadBest ResponseYou've already chosen the best response.1
Nope. Show your work step by step to see which part is hard ?
 one year ago

zakeyadorseyBest ResponseYou've already chosen the best response.0
no this is where im stuck at
 one year ago

EyadBest ResponseYou've already chosen the best response.1
hmm,Actually thats wrong and that mean that the previous step which lead to this was wrong..
 one year ago

EyadBest ResponseYou've already chosen the best response.1
Btw : here is hint \[Logx=Logy\] x=y
 one year ago

zakeyadorseyBest ResponseYou've already chosen the best response.0
well all i did was put log7(x8)over log7(3)=log7 21 then just took off the log7
 one year ago

EyadBest ResponseYou've already chosen the best response.1
Its not \[ \Large \frac{Log_{7}(x8)}{Log_{7}(3)}\] It is : \[ \Large Log_{7} \frac{(x8)}{(3)}\]
 one year ago

EyadBest ResponseYou've already chosen the best response.1
So now u have \[ \Large \frac{x8}{3}=21\] 63=x8 x=71
 one year ago

zakeyadorseyBest ResponseYou've already chosen the best response.0
ok but were did you get 63
 one year ago

zakeyadorseyBest ResponseYou've already chosen the best response.0
ooh neverminod i got it thanks
 one year ago

hamza_b23Best ResponseYou've already chosen the best response.1
lets look over some basic properties such as log(a/b) = log a  log b and log(a*b)= log a + log b and if logx= log y then x=y just because everything is in the base of 7 we could use these properties as well so therefore from your question log7 (x – 8) – log7 3 = log7 21 let us use the first property on the left side and get log7((x8)/3) = log 7 21and now let us use the third property to obtain (x8)/3 = 21 and that will get us x8 = 63 and now solve for x to obtain x = 71 :)
 one year ago

zakeyadorseyBest ResponseYou've already chosen the best response.0
thanks for the help everyone.I really needed it
 one year ago
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