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27^(x+3)=243^(x-5)?

0 votes
 
log help? answer is 17 but for some reason I can't get it
Please can someone help me??
asked Apr 27, 2014 in TRIGONOMETRY by anonymous

1 Answer

0 votes

The equation is image

image

image

image

Since the bases are the same, set the exponents equal to one another.

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image

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Solution  image.

 

answered Apr 28, 2014 by david Expert

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