document.write( "Question 116462: 8d=7d+13 \n" ); document.write( "
Algebra.Com's Answer #84676 by checkley71(8403)\"\" \"About 
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8D=7D+13
\n" ); document.write( "8D-7D=13
\n" ); document.write( "D=13 ANSWER.
\n" ); document.write( "PROOF
\n" ); document.write( "8*13=7813=13
\n" ); document.write( "104=91+13
\n" ); document.write( "104=104
\n" ); document.write( "
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