document.write( "Question 431228: What is the exact value of 4+2log3(7x)=10? And how do you find that without using a calculator? \n" ); document.write( "
Algebra.Com's Answer #299352 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
\"4%2B+2log%283%2C+7x%29+=+10\"
\n" ); document.write( "<==> \"2log%283%2C7x%29+=+6\"
\n" ); document.write( "<==> \"log%283%2C7x%29+=+3\"
\n" ); document.write( "<==> \"3%5E3+=+27+=+7x\"
\n" ); document.write( "==> x = 27/7.\r
\n" ); document.write( "\n" ); document.write( "Since this value also satisfies the original equation, this is the final answer.
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