document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=44738>Question 44738</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0201755262/algebrahomeworkh>College Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Solve each system by addition.  Determine whether each system is independent, inconsistent, or dependent.\r<BR>\n" );
document.write( "\n" );
document.write( "2x - y = 6<BR>\n" );
document.write( "-4x + 2y =9 </SPAN>\n" );
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document.write( "2x - y = 6<BR>\n" );
document.write( "-4x + 2y = 9<BR>\n" );
document.write( "let us multiply the top one by two and add them...we get<BR>\n" );
document.write( "2(2x - y = 6)<BR>\n" );
document.write( "-4x + 2y =9<BR>\n" );
document.write( "and<BR>\n" );
document.write( "4x - 2y = 12<BR>\n" );
document.write( "-4x + 2y = 9<BR>\n" );
document.write( "adding we get<BR>\n" );
document.write( "0 = 21<BR>\n" );
document.write( "We ask, \"When does 0 = 21?\"<BR>\n" );
document.write( "Well never of course.<BR>\n" );
document.write( "Thus this system has no solution, the lines are parallel and the system is inconsisent. </SPAN>\n" );
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