document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37823>Question 37823</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0199142785/algebrahomeworkh>General Mathematics</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 4x+y=14<BR>\n" );
document.write( "x+5y=13 </SPAN>\n" );
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document.write( "4x + y = 14<BR>\n" );
document.write( "x + 5y = 13<BR>\n" );
document.write( "let us solve the first one for y and plug it in to the second one<BR>\n" );
document.write( "y = -4x + 14<BR>\n" );
document.write( "Then<BR>\n" );
document.write( "x + 5(-4x + 14) = 13<BR>\n" );
document.write( "x - 20x + 70 = 13<BR>\n" );
document.write( "-19x = -57<BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "Then<BR>\n" );
document.write( "y = -4(3) + 14<BR>\n" );
document.write( "y = 2  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );