document.write( "Question 232415: A teacher has to make 159 copies of a review packet for the students in her classes. When she arrives in the workroom she starts using both copy machines(call them X and Y). During the copying, machine X runs out of paper, so it only printed half as many packets as copier Y. How many copies does each machine print?\r
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Algebra.Com's Answer #171758 by rapaljer(4671)\"\" \"About 
You can put this solution on YOUR website!
Copier X printed HALF as many as copier Y, so Y copied TWICE as many as copier X. This might be easier, since I clears the fractions:\r
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\n" ); document.write( "\n" ); document.write( "Y=2X,
\n" ); document.write( "X+Y= 159\r
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\n" ); document.write( "\n" ); document.write( "Substitute Y=2X into the second equation:
\n" ); document.write( "X+2X=159
\n" ); document.write( "3x=159
\n" ); document.write( "x=53\r
\n" ); document.write( "\n" ); document.write( "Y=2X
\n" ); document.write( "Y=2*53
\n" ); document.write( "Y=106\r
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\n" ); document.write( "\n" ); document.write( "Dr. Robert J. Rapalje, Retired
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