document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=97576>Question 97576</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Help me please, I do not know how to solve these types of equations, <BR>\n" );
document.write( "0.5x+0.4y=-1<BR>\n" );
document.write( "0.3x+0.6y=-0.6 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #70974 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=70974\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> YOU NEED TO ELIMINATE ONE OF THE UNKNOWN TERMS BY ADDITION OR SUBTRACTION. THUS:<BR>\n" );
document.write( "MULTIPLY THE FIRST EQUATION BY -3 & THE SECOND EQUATION BY 5 & ADD.<BR>\n" );
document.write( "-1.5-1.2Y=3<BR>\n" );
document.write( "1.5X+3Y=-3<BR>\n" );
document.write( "------------------------ <BR>\n" );
document.write( "1.8Y=0<BR>\n" );
document.write( "Y=0 ANSWER. NOW SUBSTITUTE 0 FOR Y & SOLVE FOR X<BR>\n" );
document.write( ".5X+0*Y=-1<BR>\n" );
document.write( ".5X=-1<BR>\n" );
document.write( "X=-1/.5<BR>\n" );
document.write( "X=-2 ANSWER.<BR>\n" );
document.write( "PROOF<BR>\n" );
document.write( ".3*-2+.6*0=-.6<BR>\n" );
document.write( "-.6=-.6<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );