document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=127431>Question 127431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Slope -3/7; through (7,0)\r<BR>\n" );
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document.write( "I used the point-slope equation method to solve, but for some reason I am not understanding how to solve.\r<BR>\n" );
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document.write( "I used y2-y1=m(x-x1)\r<BR>\n" );
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document.write( "y-0=-3/7(x-7)<BR>\n" );
document.write( "y=-3/7.7/3 reciprocal<BR>\n" );
document.write( "y=1x-7\r<BR>\n" );
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document.write( "The answer is supposed to be 3x+7y=21.\r<BR>\n" );
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document.write( "I have no idea how to get there.\r<BR>\n" );
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document.write( "Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #93360 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=93360\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Well, you are correct...up to a point!<BR>\n" );
document.write( "You are given the slope: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m+=+-3%2F7 ALIGN=MIDDLE  ALT=\"m+=+-3%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > and a point (7, 0) and you wrote:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-0+=+%28-3%2F7%29%28x-7%29 ALIGN=MIDDLE  ALT=\"y-0+=+%28-3%2F7%29%28x-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > This is correct, so far. Now, it appears that you want the answer in standard form: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ax%2Bby+=+c ALIGN=MIDDLE  ALT=\"ax%2Bby+=+c\"   DISABLED_style= \"max-width:90%; height:auto;\" >, so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%28-3%2F7%29%28x-7%29 ALIGN=MIDDLE  ALT=\"y+=+%28-3%2F7%29%28x-7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > Distribute the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3%2F7 ALIGN=MIDDLE  ALT=\"-3%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" > to get:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+%28-3%2F7%29x+%2B+3 ALIGN=MIDDLE  ALT=\"y+=+%28-3%2F7%29x+%2B+3\"   DISABLED_style= \"max-width:90%; height:auto;\" > Then multiply through by 7.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7y+=+-3x%2B21 ALIGN=MIDDLE  ALT=\"7y+=+-3x%2B21\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now write this in standard form by adding 3x to both sides:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B7y+=+21 ALIGN=MIDDLE  ALT=\"3x%2B7y+=+21\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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