document.write( "Question 1130839: 3 to the power of 2x-5 then +7=12\r
\n" ); document.write( "\n" ); document.write( "Please help me solve for x, thanks.
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Algebra.Com's Answer #747466 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!


\n" ); document.write( "\"3%5E%282x-5%29%2B7+=+12\"

\n" ); document.write( "Isolate the term containing the variable:

\n" ); document.write( "\"3%5E%282x-5%29+=+5\"

\n" ); document.write( "The variable is in an exponent, so take the log of both sides:

\n" ); document.write( "\"%282x-5%29%2Alog%283%29+=+log%285%29\"

\n" ); document.write( "Expand the expression on the left and isolate the term containing the variable:

\n" ); document.write( "\"2x%2Alog%283%29-5%2Alog%283%29+=+log%285%29\"
\n" ); document.write( "\"2x%2Alog%283%29+=+5%2Alog%283%29%2Blog%285%29\"

\n" ); document.write( "Solve for x:

\n" ); document.write( "\"x+=+%285%2Alog%283%29%2Blog%285%29%29%2F%282%2Alog%283%29%29\"

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\n" ); document.write( "question from student (about an unrelated problem):

\n" ); document.write( " Hello, I have a basic math question and I think the person who gave me the answer got offended. In the equation, K=100*20squared/8, how do you get 500. Isn't 20 squared 400 then divided by 8=50?

\n" ); document.write( "What happened to the \"100\"?

\n" ); document.write( "100*20squared/8 = 100*400/8 = 100*50 = 5000
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