document.write( "Question 162946This question is from textbook 445234
\n" ); document.write( ": 4n-2n=18 \n" ); document.write( "
Algebra.Com's Answer #120096 by checkley77(12844)\"\" \"About 
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4n-2n=18
\n" ); document.write( "2n=18
\n" ); document.write( "n=18/2
\n" ); document.write( "n=9 Answer.
\n" ); document.write( "Proof:
\n" ); document.write( "4*9-2*9=18
\n" ); document.write( "36-18=18
\n" ); document.write( "18=18
\n" ); document.write( "
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