document.write( "Question 285286: 7x-8x=9 \n" ); document.write( "
Algebra.Com's Answer #206854 by checkley77(12844)\"\" \"About 
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7x-8x=9
\n" ); document.write( "-X=9
\n" ); document.write( "X=-9 ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "7*-9-8*-9=9
\n" ); document.write( "-63+72=9
\n" ); document.write( "9=9
\n" ); document.write( "
\n" );