document.write( "Question 799746: two times a number added to another number is 25. three times the first number minus the other number is 20
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Algebra.Com's Answer #482812 by rfer(16322)\"\" \"About 
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2x+y=25
\n" ); document.write( "3x-y=20
\n" ); document.write( "----------
\n" ); document.write( "y=25-2x
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\n" ); document.write( "3x-(25-2x)=20
\n" ); document.write( "3x-25+2x=20
\n" ); document.write( "5x=20+25
\n" ); document.write( "5x=45
\n" ); document.write( "x=45/5
\n" ); document.write( "x=9
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\n" ); document.write( "2*9+y=25
\n" ); document.write( "18+y=25
\n" ); document.write( "y=25-18
\n" ); document.write( "y=7
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\n" ); document.write( "2x+y=25
\n" ); document.write( "2*9+7=25
\n" ); document.write( "(9,7)
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