document.write( "Question 754806: solve for x
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document.write( "3^(x-7)=14^(2x)
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document.write( "write the exact answer using base-10 logarithms \n" );
document.write( "
Algebra.Com's Answer #459308 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! solve for x \n" ); document.write( "3^(x-7)=14^(2x) \n" ); document.write( "solve for x \n" ); document.write( "(x-7)*log(3) = 2x*log(14) \n" ); document.write( "x*log(3) - 7log(3) = 2x*log(14) \n" ); document.write( "xlog(3) - 2x*log(14) = 7log(3) \n" ); document.write( "x*(log(3) - 2log(14)) = 7log(3) \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "-------------- \n" ); document.write( "also, x = ln(2187)/ln(3/196) or logs to any matching bases \n" ); document.write( " \n" ); document.write( " |