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Mathematics 16 Online
OpenStudy (anonymous):

log2(x-3)=5

OpenStudy (anonymous):

\[\log_{2} (x-3)=5\]

OpenStudy (anonymous):

X=35

OpenStudy (anonymous):

how do you get that?

OpenStudy (shamil98):

Let (x-3) = a \[\large \log_3 a = 5\] \[\large Log_a b = c ---> a^c = b\]

OpenStudy (shamil98):

So, what do you get off of that?

OpenStudy (shamil98):

Try and do the work, just getting the answers won't help you.

OpenStudy (anonymous):

i just needed help, not the answer

OpenStudy (anonymous):

@dalia_lam Is my answer wrong than?

OpenStudy (shamil98):

@dalia_lam that's incorrect \[\large \log_b M - \log _b N = \log_b \frac{ M }{ N }\]

OpenStudy (shamil98):

not log_b(m-n)...

OpenStudy (shamil98):

Look at my example.. try and solve it

OpenStudy (anonymous):

wait, i forgot the bracket

OpenStudy (shamil98):

\[\Huge Let (x-3) = a\] \[\Huge \log_a b = c -> a^c = b \]

OpenStudy (anonymous):

|dw:1386296360298:dw|

OpenStudy (shamil98):

\[\Huge a = 3^5\]

OpenStudy (shamil98):

\[\Huge \log_2 a = 5\] \[\Huge a = 2^5\]

OpenStudy (shamil98):

\[\Huge x -3 = 32\] \[\Huge x = 35\]

OpenStudy (anonymous):

i got 35, and thats on my answer list so im guessing thats right. thank you guys for the help.

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