document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=133609>Question 133609</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the answer to these systems of equations using addition to eliminate one of the variables?\r<BR>\n" );
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document.write( "4a-6b=15<BR>\n" );
document.write( "6a-4b=10<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97771 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=97771\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4a-6b=15<BR>\n" );
document.write( "6a-4b=10<BR>\n" );
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document.write( "Multiply 1st by 6 and multiply 2nd by 4 to get:\r<BR>\n" );
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document.write( "24a - 36b = 90<BR>\n" );
document.write( "24a - 16b = 40<BR>\n" );
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document.write( "subtract 1st from 2nd to get:<BR>\n" );
document.write( "20b = -50<BR>\n" );
document.write( "b = -5/2<BR>\n" );
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document.write( "Substitute to solve for \"a\":<BR>\n" );
document.write( "4(-5/2) -6b = 90<BR>\n" );
document.write( "-10 -6b = 90<BR>\n" );
document.write( "-6b = 100<BR>\n" );
document.write( "b = -16.666667<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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