document.write( "Question 55752This question is from textbook Introductory Algebra
\n" ); document.write( ": 5x-y=10
\n" ); document.write( "2x+y=4 \n" ); document.write( "
Algebra.Com's Answer #37823 by checkley71(8403)\"\" \"About 
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5X-Y=10
\n" ); document.write( "2X+Y=4 NO ADD THESE TWO EQUATIONS
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\n" ); document.write( "7X=14
\n" ); document.write( "X=14/7
\n" ); document.write( "X=2
\n" ); document.write( "5*2-Y=10
\n" ); document.write( "10-Y=10
\n" ); document.write( "-Y=10-10
\n" ); document.write( "-Y=0
\n" ); document.write( "Y=0
\n" ); document.write( "PROOF
\n" ); document.write( "2*2+0=4
\n" ); document.write( "4=4\r
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