document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=500077>Question 500077</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a is comp. to b<BR>\n" );
document.write( "b is comp to c<BR>\n" );
document.write( "a=3x+y<BR>\n" );
document.write( "b=x+4y+2<BR>\n" );
document.write( "c=3y-3<BR>\n" );
document.write( "Find b </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #338277 by </B><A HREF=/tutors/aboutme.mpl?userid=cleomenius><B>cleomenius(959)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=cleomenius><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=cleomenius><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=338277\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We will set these up with simultaneous equations.<BR>\n" );
document.write( "3x + y  + x + 4y + 2 = 90<BR>\n" );
document.write( "4x + 5y  = 88 equation 1.<BR>\n" );
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document.write( "x + 4y + 2 + 3y - 3 = 90<BR>\n" );
document.write( "x + 7y = 91 equation 2.<BR>\n" );
document.write( "==============================<BR>\n" );
document.write( "4x + 5y  = 88 equation 1.<BR>\n" );
document.write( "x + 7y  = 91 equation 2.<BR>\n" );
document.write( "=============================<BR>\n" );
document.write( "4x + 5y = 88 equation 1.<BR>\n" );
document.write( "Now, multiply equation two by -4<BR>\n" );
document.write( "-4x - 28y  = - 364<BR>\n" );
document.write( "and then add to equation one, <BR>\n" );
document.write( "-23y = -276<BR>\n" );
document.write( "solve for y.<BR>\n" );
document.write( "y = 12<BR>\n" );
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document.write( "Put this into equation one to solve for x.<BR>\n" );
document.write( "4x + 5y  = 88<BR>\n" );
document.write( "4x + 5(12) = 88<BR>\n" );
document.write( "x = 7<BR>\n" );
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document.write( "Now, check this in equation two.<BR>\n" );
document.write( "7 + 7(12) = 91.<BR>\n" );
document.write( "This does check.<BR>\n" );
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document.write( "Angle A= 3(7) + 12 = 33 degrees<BR>\n" );
document.write( "Angle B= 7 + 4(12) + 2 = 57 degrees<BR>\n" );
document.write( "Angle C= 3(12) - 3 = 33 degrees<BR>\n" );
document.write( "57 degrees + 33 degrees = 90 degrees.<BR>\n" );
document.write( "These do check.<BR>\n" );
document.write( "Cleomenius.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );