document.write( "Question 451473: log2(x+7) - log2(x)=1 \n" ); document.write( "
Algebra.Com's Answer #310449 by edjones(8007)\"\" \"About 
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log2(x+7) - log2(x)=1
\n" ); document.write( "2^log2(x+7) - 2^log2(x)=2^1
\n" ); document.write( "(x+7)/x = 2
\n" ); document.write( "x+7=2x
\n" ); document.write( "x=7
\n" ); document.write( ".
\n" ); document.write( "Ed
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