Question 418720
 if ((8^x)(9^2y))=81(2^12y) what does x equal? 
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You can solve for x in terms of y.
{{{((8^x)(9^(2y)))=81(2^(12y))}}}
{{{8^x = 81*2^(12y)/(9^(2y))}}}
Some manipultion is possible, but "simplification" is sometimes a matter of opinion.
{{{8^x = 81*2^(12y)/(9^(2y))}}}
{{{8^x = 81*2^(12y)/(81^(y))}}}
{{{8^x = 2^(12y)/(81^(y-1))}}}
{{{x*log(8) = 12y*log(2) - (y-1)*log(81)}}}
{{{x = (12y*log(2) - (y-1)*log(81))/log(8)}}}
All the logs of constants are constants, so it could be calculated to be a constant times y, x = Cy