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42 votes
42 votes
HELP please I need to finish it before midnight.

HELP please I need to finish it before midnight.-example-1
User MayankGaur
by
2.7k points

1 Answer

18 votes
18 votes

Answer:


x=-(9ln(15))/(2ln(11)-ln(15))

Explanation:


11^(-2x)=15^(x+9)


e^((-2x)ln(11))=e^{(x+9)ln(15)


-2xln(11)=(x+9)ln(15)


-2xln(11)=xln(15)+9ln(15)


-2xln(11)-xln(15)=9ln(15)


x(-2ln(11)-ln(15))=9ln(15)


x=(9ln(15))/(-2ln(11)-ln(15))


x=-(9ln(15))/(2ln(11)-ln(15))

User Meepzh
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2.9k points