document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=309345>Question 309345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.what is the solution of the system of equations?<BR>\n" );
document.write( "4x-8y=-4<BR>\n" );
document.write( "5x+7y=-22\r<BR>\n" );
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document.write( "2.solve the system of euations below by elimination?<BR>\n" );
document.write( "2x+y=15<BR>\n" );
document.write( "5x-y=13\r<BR>\n" );
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document.write( "3.what is the solution of the systen of equations below?<BR>\n" );
document.write( "4y-7x=-1<BR>\n" );
document.write( "2y+3x=-33\r<BR>\n" );
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document.write( "4. give the solution to this system of equations,<BR>\n" );
document.write( "2/7x+3/5y=-2<BR>\n" );
document.write( "4/7x+1/5y=6\r<BR>\n" );
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document.write( "5.use the elimination process to solve the system of equations below,<BR>\n" );
document.write( "-3x+5y=12<BR>\n" );
document.write( "6x-10y=-21\r<BR>\n" );
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document.write( "6.solve the system of equations<BR>\n" );
document.write( "5x-2y=11<BR>\n" );
document.write( "2x-12=-3y\r<BR>\n" );
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document.write( "7.the sum of four times  number and six times a second number is 36. the doffrence of five times the second number and thre times the first number is 49. find the numbers </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #221249 by </B><A HREF=/tutors/aboutme.mpl?userid=ichudov><B>ichudov(507)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ichudov><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=ichudov><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=221249\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you cannot dump many problems in one question. I will solve just one\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28+4x-8y=-4%2C+5x%2B7y=-22+%29+ ALIGN=MIDDLE  ALT=\"system%28+4x-8y=-4%2C+5x%2B7y=-22+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( " <TR><TD  ALIGN=MIDDLE>Solved by <A  rel=nofollow HREF=http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers>pluggable</A> solver: <A  rel=nofollow HREF=linear_substitution.solver>SOLVE linear system by SUBSTITUTION</A></TD></TR>\n" );
document.write( "<TR><TD  ALIGN=LEFT>Solve:<BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+system%28+%0D%0A++++4%5Cx+%2B+-8%5Cy+=+-4%2C%0D%0A++++5%5Cx+%2B+7%5Cy+=+-22+%29%0D%0A++ ALIGN=MIDDLE  ALT=\"+system%28+%0D%0A++++4%5Cx+%2B+-8%5Cy+=+-4%2C%0D%0A++++5%5Cx+%2B+7%5Cy+=+-22+%29%0D%0A++\"   DISABLED_style= \"max-width:90%; height:auto;\" >We'll use substitution. After moving -8*y to the right, we get:<BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Ax+=+-4+-+-8%2Ay ALIGN=MIDDLE  ALT=\"4%2Ax+=+-4+-+-8%2Ay\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-4%2F4+-+-8%2Ay%2F4 ALIGN=MIDDLE  ALT=\"x+=+-4%2F4+-+-8%2Ay%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Substitute that<BR>\n" );
document.write( "  into another equation:<BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2A%28-4%2F4+-+-8%2Ay%2F4%29+%2B+7%5Cy+=+-22 ALIGN=MIDDLE  ALT=\"5%2A%28-4%2F4+-+-8%2Ay%2F4%29+%2B+7%5Cy+=+-22\"   DISABLED_style= \"max-width:90%; height:auto;\" > and simplify: So, we know that y=-1. Since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-4%2F4+-+-8%2Ay%2F4 ALIGN=MIDDLE  ALT=\"x+=+-4%2F4+-+-8%2Ay%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, x=-3.<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  Answer: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28+x=-3%2C+y=-1+%29 ALIGN=MIDDLE  ALT=\"system%28+x=-3%2C+y=-1+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "  </TD></TR>\n" );
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document.write( " </SPAN>\n" );
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