document.write( "Question 312047: simplify log base 7 (0.4) \n" ); document.write( "
Algebra.Com's Answer #223105 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"log%287%2C%280.4%29%29=log%2810%2C%280.4%29%29%2Flog%2810%2C%287%29%29\"
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