document.write( "Question 986384: Solve for x:\r
\n" ); document.write( "\n" ); document.write( "(8+x)^-5=64 \n" ); document.write( "
Algebra.Com's Answer #607147 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
(8+x)^-5=64
\n" ); document.write( "-5 ln (8+x)=ln64
\n" ); document.write( "-5 ln (8+x)=4.15888 (don't round)
\n" ); document.write( "divide by -5 both sides
\n" ); document.write( "ln(8+x)=-0.83178
\n" ); document.write( "raise both sides to the e power
\n" ); document.write( "8+x=0.43527
\n" ); document.write( "x=-7.565
\n" ); document.write( "check
\n" ); document.write( "0.43527^-5=64
\n" ); document.write( "=============
\n" ); document.write( "-5 log 2 (8+x)=6, taking log 2 of both sides
\n" ); document.write( "log 2 (8+x)=-1.2
\n" ); document.write( "raise to the 2 power
\n" ); document.write( "8+x=0.43527\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );