document.write( "Question 1032490: How do I solve this
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document.write( "7^x-8+20=295 \n" );
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Algebra.Com's Answer #647154 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Assume this is the problem \n" ); document.write( " \n" ); document.write( "subtract 20 from both sides \n" ); document.write( " \n" ); document.write( "using natural logs \n" ); document.write( " \n" ); document.write( "the log equiv of exponents \n" ); document.write( "(x-8)*ln(7) = ln(275) \n" ); document.write( "divide both sides by ln(7) \n" ); document.write( "x - 8 = \n" ); document.write( "use the calc \n" ); document.write( "x - 8 = 2.88645 \n" ); document.write( "x = 2.88645 + 8 \n" ); document.write( "x = 10.88645 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "You can confirm this, replace x with 10.88645 in the original equation, use your calc\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |