document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=650978>Question 650978</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi,im a student 15 years old, having trouble with finding the solution to this question.\r<BR>\n" );
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document.write( "6x + 5y = 7      &        x - y = 3 \r<BR>\n" );
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document.write( "i have to find the coordinates (x,y) i found that the answer is x= 2 and y = -1 <BR>\n" );
document.write( "but i dont know how to find the soulution. Please help thanks.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #407519 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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/cgi-bin/show-face.mpl?user=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=407519\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 6x + 5y = 7      &        x - y = 3 <BR>\n" );
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document.write( "apply the \"substitution method\", solve the right equation for x:<BR>\n" );
document.write( "x - y = 3<BR>\n" );
document.write( "x = y+3<BR>\n" );
document.write( "substitute above into the left equation to find y:<BR>\n" );
document.write( "6x + 5y = 7<BR>\n" );
document.write( "6(y+3) + 5y = 7<BR>\n" );
document.write( "6y+18 + 5y = 7<BR>\n" );
document.write( "11y+18 = 7<BR>\n" );
document.write( "11y = -11<BR>\n" );
document.write( "y = -1<BR>\n" );
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document.write( "substitute above into the right equation to find x:<BR>\n" );
document.write( "x - y = 3<BR>\n" );
document.write( "x - (-1) = 3<BR>\n" );
document.write( "x + 1 = 3<BR>\n" );
document.write( "x = 2<BR>\n" );
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document.write( "solution: (x,y) = (2, -1) </SPAN>\n" );
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