document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=22279>Question 22279</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How would I solve these systems?\r<BR>\n" );
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document.write( "1)x+5y=4<BR>\n" );
document.write( "    3x-7y=-10\r<BR>\n" );
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document.write( "2)-5x+3y=6<BR>\n" );
document.write( "      x-y=4\r<BR>\n" );
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document.write( "3)3x-8y=13<BR>\n" );
document.write( "    4x-5y=6\r<BR>\n" );
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document.write( "4)3x-7y=6<BR>\n" );
document.write( "     2x+7y=4\r<BR>\n" );
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document.write( "5)4x+3y=19<BR>\n" );
document.write( "     3x-4y=8\r<BR>\n" );
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document.write( "6)2x+y=5<BR>\n" );
document.write( "     3x-2y=4\r<BR>\n" );
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document.write( "7)3x-2y=19<BR>\n" );
document.write( "     5x+4y=17\r<BR>\n" );
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document.write( "8)7x+3y=-1<BR>\n" );
document.write( "     4x+y=3\r<BR>\n" );
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document.write( "9)8x-3y=-11<BR>\n" );
document.write( "     2x-5y=27\r<BR>\n" );
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document.write( "10)4x-7y=10<BR>\n" );
document.write( "      3x+2y=-7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #11819 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><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=11819\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> There are different ways to solve thewe, one way is by substitution; where one equation is solved t\for one variable and that solutin is substituted into the second equation. I will solve a few, then you try and do the rest.<BR>\n" );
document.write( "Solve one equation for one variable;<BR>\n" );
document.write( "1)x+5y=4  (eq.1)<BR>\n" );
document.write( "    3x-7y=-10  (eq.2)<BR>\n" );
document.write( "Lets start by solving eq.1 for x;<BR>\n" );
document.write( "x=4-5y (eq.3)<BR>\n" );
document.write( "Now substitute eq.3 into the other equation and solve for y;<BR>\n" );
document.write( "3(4-5y)-7y=-10<BR>\n" );
document.write( "12-15y-7y=-10<BR>\n" );
document.write( "12-22y=-10<BR>\n" );
document.write( "-22y=-10-22<BR>\n" );
document.write( "-22y=-22<BR>\n" );
document.write( "y=1<BR>\n" );
document.write( "Now you have what y equals, so you are going to plug that into eq.1 and solve for x;<BR>\n" );
document.write( "x+5(1)=4<BR>\n" );
document.write( "x+5=4<BR>\n" );
document.write( "x=4-5<BR>\n" );
document.write( "x=-1<BR>\n" );
document.write( "So the answer; x=-1, y=1\r<BR>\n" );
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document.write( "2)-5x+3y=6 (eq.1)<BR>\n" );
document.write( "      x-y=4 (eq.2)\r<BR>\n" );
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document.write( "x-y=4<BR>\n" );
document.write( "x=4+y (eq.3)<BR>\n" );
document.write( "-5(4+y)+3y=6<BR>\n" );
document.write( "-20-5y+3y=6<BR>\n" );
document.write( "-20-2y=6<BR>\n" );
document.write( "-2y=6+20<BR>\n" );
document.write( "-2y=26<BR>\n" );
document.write( "y=-13<BR>\n" );
document.write( "x-y=4 (eq.2)<BR>\n" );
document.write( "x-(-13)=4<BR>\n" );
document.write( "x+13=4<BR>\n" );
document.write( "x=4-13<BR>\n" );
document.write( "x=-9<BR>\n" );
document.write( "x=-9, y=-13\r<BR>\n" );
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document.write( "Now try and solve the others on your own, if you are still having problems, let me know.<BR>\n" );
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document.write( " </SPAN>\n" );
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