document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=521829>Question 521829</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2.00x+1.5y=550.00<BR>\n" );
document.write( "x=3y-100<BR>\n" );
document.write( " i need to graph so im guessing it needs to be in slope intercept form? i keep getting decimals and i need help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #346596 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=346596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2.00x + 1.5y = 550.00<BR>\n" );
document.write( "multiply by 10 to eliminate decimals<BR>\n" );
document.write( "20x + 15y = 5500<BR>\n" );
document.write( "15y = -20x + 5500<BR>\n" );
document.write( "y = -(20/15)*x + 5500/15<BR>\n" );
document.write( "y = -(4/3)x + 1100/3<BR>\n" );
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document.write( "x = 3y -100<BR>\n" );
document.write( "x + 100 = 3y<BR>\n" );
document.write( "3y = x + 100<BR>\n" );
document.write( "y = x/3 + 100/3<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28500%2C500%2C-500%2C500%2C-500%2C500%2C-4%2F3%2Ax%2B1100%2F3%2Cx%2F3%2B100%2F3%29+ ALIGN=MIDDLE  ALT=\"graph%28500%2C500%2C-500%2C500%2C-500%2C500%2C-4%2F3%2Ax%2B1100%2F3%2Cx%2F3%2B100%2F3%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "To eliminate fractions, you need to multiply by 3.  That could be rearranged into standard form.<BR>\n" );
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document.write( "3y = -4x + 1100<BR>\n" );
document.write( "4x + 3y = 1100<BR>\n" );
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document.write( "y = x/3 + 100/3<BR>\n" );
document.write( "3y = x + 100<BR>\n" );
document.write( "-x + 3y = 100<BR>\n" );
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document.write( "This layout suggests a set of linear equations:<BR>\n" );
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document.write( "4x + 3y = 1100<BR>\n" );
document.write( "-x + 3y = 100<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "5x = 1000<BR>\n" );
document.write( "x = 200<BR>\n" );
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document.write( "Substitute x = 200<BR>\n" );
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document.write( "-200 +3y = 100<BR>\n" );
document.write( "3y = 300<BR>\n" );
document.write( "y = 100<BR>\n" );
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document.write( "So, the lines intersect at (200,100).<BR>\n" );
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document.write( "You can check using the other equation:<BR>\n" );
document.write( "4(200) + 3(100) = 1100<BR>\n" );
document.write( "True<BR>\n" );
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document.write( "Done. </SPAN>\n" );
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