document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62708>Question 62708</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1888469544/algebrahomeworkh>beginning algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> 19.  this cause for me to solve the system of equations  using elimination by addition method this equation I had problems solving can you help me?\r<BR>\n" );
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document.write( "3x+5y=-19<BR>\n" );
document.write( "6x+7y=-23\r<BR>\n" );
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document.write( "43.  2.1x-0.6y=8.4<BR>\n" );
document.write( "     -1.5x-0.3y=-6  this equation i used the 10 to change to a whole number and the answer was incorrect the book ans is (4,0)intersecting </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43535 by </B><A HREF=/tutors/aboutme.mpl?userid=303795><B>303795(602)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=303795><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=43535\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Problem 1<BR>\n" );
document.write( "Equation 1: 3x + 5y = -19<BR>\n" );
document.write( "Equation 2: 6x + 7y = -23<BR>\n" );
document.write( "Multiply the first equation by 2 to get<BR>\n" );
document.write( "Equation 1: 6x + 10y = -38<BR>\n" );
document.write( "Subtract Equation 2 from new Equation 1 to get<BR>\n" );
document.write( "3y = -15 ie y = -5<BR>\n" );
document.write( "Substitute y=-5 in Equation 1 to get<BR>\n" );
document.write( "3x + 5 *(-5) = -19<BR>\n" );
document.write( "3x - 25 = -19 Add 25 to each side to get<BR>\n" );
document.write( "3x = 6 ie x = 2\r<BR>\n" );
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document.write( "So x = 2 and y = -5\r<BR>\n" );
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document.write( "Problem 2<BR>\n" );
document.write( "Equation 1: 2.1x - 0.6y = 8.4<BR>\n" );
document.write( "Equation 2: -1.5x - 0.3y = -6 <BR>\n" );
document.write( "Multiply the second equation by 2 to get<BR>\n" );
document.write( "Equation 2: -3x - 0.6y = -12 <BR>\n" );
document.write( "Subtract Equation 2 from new Equation 1 to get<BR>\n" );
document.write( "5.1x= - 20.4<BR>\n" );
document.write( "Divide each side by 5.1 to get<BR>\n" );
document.write( "x = 4 Subsitute x = 4 in Equation 1<BR>\n" );
document.write( "2.1x - 0.6y = 8.4<BR>\n" );
document.write( "2.1*4 - 0.6y = 8.4<BR>\n" );
document.write( "8.4 - 0.6y = 8.4 Subtract 8.4 from each side to get<BR>\n" );
document.write( "0.6y = 0 Therefore y = 0<BR>\n" );
document.write( "So x = 4 and y = 0<BR>\n" );
document.write( " </SPAN>\n" );
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