document.write( "Question 968281: -20=-3(6)^4-x is asking me to solve , and I first divided by -3 but after that I got confused on wether I should introduce a log or not because if I do I think it will make the problem harder. \n" ); document.write( "

Algebra.Com's Answer #591743 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

You can put this solution on YOUR website!
Assume the problem is:
\n" ); document.write( " $\"-20=-3%286%29%5E%28%284-x%29%29\"$
\n" ); document.write( " dividing by -1 gets rid of those negatives, and we have
\n" ); document.write( " $\"20%2F3+=6%5E%28%284-x%29%29\"$
\n" ); document.write( " $\"log%2820%2F3%29+=+log%286%5E%28%284-x%29%29%29\"$
\n" ); document.write( "the log equiv of exponents
\n" ); document.write( " $\"log%2820%2F3%29+=+%284-x%29%2Alog%286%29\"$
\n" ); document.write( " $\"log%2820%2F3%29%2Flog%286%29+=+4+-+x\"$
\n" ); document.write( "find the logs using you calc
\n" ); document.write( "1.05888 = 4 - x
\n" ); document.write( "x = 4 - 1.05888
\n" ); document.write( "x = 2.9412
\n" ); document.write( ":
\n" ); document.write( ":\r
\n" ); document.write( "\n" ); document.write( "Check this on your calc by substitution 2.9412 for x in the original problem\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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