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

HELP please I need to finish it before midnight.-example-1
User Ovasylenko
by
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1 Answer

11 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 Cyanfish
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