document.write( "Question 22906: I'm having trouble with this text book question can you show me how to solve it
\n" ); document.write( "log(3x-7)=21 \n" ); document.write( "

Algebra.Com's Answer #11286 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
Recall that:\r
\n" ); document.write( "\n" ); document.write( " $\"log%28b%2CM%29=x\"$ means: $\"b%5Ex+=+M\"$ Applying this to your problem:\r
\n" ); document.write( "\n" ); document.write( " $\"log%2810%2C%283x-7%29%29+=+21\"$ means:
\n" ); document.write( " $\"10%5E21+=+%283x-7%29\"$ Add 7 to both sides.
\n" ); document.write( " $\"10%5E21+%2B+7+=+3x\"$ Finally, divide both sides by 3.
\n" ); document.write( " $\"x+=+%2810%5E21+%2B+7%29%2F3\"$
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