document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=302120>Question 302120</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a few math questions that I need help with. Can you show me how to do these problems??\r<BR>\n" );
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document.write( "2y-3x=4\r<BR>\n" );
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document.write( "2y-5x=8\r<BR>\n" );
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document.write( "y= -3x+7, y= -2x- 5\r<BR>\n" );
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document.write( "x+y = 8, x-y = 12 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #216630 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=216630\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2y-3x=4 <BR>\n" );
document.write( "2y-5x=8<BR>\n" );
document.write( "Solving by elimination.<BR>\n" );
document.write( "Subtract the 2nd equation from the 1st to get:<BR>\n" );
document.write( "2x = -4<BR>\n" );
document.write( "x = -2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Substitute into either of the original equations and solve for \"y\":<BR>\n" );
document.write( "2y -3(-2) = 4<BR>\n" );
document.write( "2y + 6 = 4<BR>\n" );
document.write( "2y = -2<BR>\n" );
document.write( "y = -1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solution: (-2,-1)<BR>\n" );
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document.write( "y= -3x+7, <BR>\n" );
document.write( "y= -2x- 5<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve by substitution:<BR>\n" );
document.write( "-3x+7 = -2x-5<BR>\n" );
document.write( "Add 3x to both sides to get:<BR>\n" );
document.write( "x-5 = 7<BR>\n" );
document.write( "Add 5 to both sides to get:<BR>\n" );
document.write( "x = 12<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Substitute into either of the original equations and solve for \"y\":<BR>\n" );
document.write( "y = -3(12) + 7<BR>\n" );
document.write( "y = -36 + 7<BR>\n" );
document.write( "y = -29<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solution: (12,-29)<BR>\n" );
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document.write( "x+y = 8<BR>\n" );
document.write( "x-y = 12<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve by elimination:<BR>\n" );
document.write( "Add the two equations to get:<BR>\n" );
document.write( "2x = 20<BR>\n" );
document.write( "x = 10<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Substitute and solve for \"y\":<BR>\n" );
document.write( "10+y = 8<BR>\n" );
document.write( "y = -2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solution: (10,-2)<BR>\n" );
document.write( "=========================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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