document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1049483>Question 1049483</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given: &#8736;A is comp. to &#8736;B<BR>\n" );
document.write( "&#8736;C is comp. to &#8736;B<BR>\n" );
document.write( "&#8736;A = (3x+y)°<BR>\n" );
document.write( "&#8736;B = (x+4y+2)°<BR>\n" );
document.write( "&#8736;C = (3y-3)°<BR>\n" );
document.write( "Find: m&#8736;B\r<BR>\n" );
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document.write( "(comp. = complementary)\r<BR>\n" );
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document.write( "I was thinking that since complementary angles are (90-x) you would figure out what x is by possibly adding angle A angle B and angle C all together and solving... I'm not sure if this is right. Would you use solving systems? I was thinking maybe you would because there's x and y you need to solve for. I am having a hard time understanding this concept. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #665048 by </B><A HREF=/tutors/aboutme.mpl?userid=advanced_Learner><B>advanced_Learner(501)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=advanced_Learner><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=advanced_Learner><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=665048\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=equations+ ALIGN=MIDDLE  ALT=\"equations+\"   DISABLED_style= \"max-width:90%; height:auto;\" > are\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2BB ALIGN=MIDDLE  ALT=\"A%2BB\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90 ALIGN=MIDDLE  ALT=\"90\"   DISABLED_style= \"max-width:90%; height:auto;\" > eq 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=B%2BC ALIGN=MIDDLE  ALT=\"B%2BC\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90 ALIGN=MIDDLE  ALT=\"90\"   DISABLED_style= \"max-width:90%; height:auto;\" > eq 2\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2By%2Bx%2B4y%2B2 ALIGN=MIDDLE  ALT=\"3x%2By%2Bx%2B4y%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90 ALIGN=MIDDLE  ALT=\"90\"   DISABLED_style= \"max-width:90%; height:auto;\" > eq 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B4y%2B2%2B3y-3 ALIGN=MIDDLE  ALT=\"x%2B4y%2B2%2B3y-3\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90 ALIGN=MIDDLE  ALT=\"90\"   DISABLED_style= \"max-width:90%; height:auto;\" > eq 2\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x%2B5y ALIGN=MIDDLE  ALT=\"4x%2B5y\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=88 ALIGN=MIDDLE  ALT=\"88\"   DISABLED_style= \"max-width:90%; height:auto;\" > eq 1\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2B7y ALIGN=MIDDLE  ALT=\"x%2B7y\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=91 ALIGN=MIDDLE  ALT=\"91\"   DISABLED_style= \"max-width:90%; height:auto;\" > eq 2\r<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+5%5Cy+=+88%2C%0D%0A++++1%5Cx+%2B+7%5Cy+=+91+%29%0D%0A++ ALIGN=MIDDLE  ALT=\"+system%28+%0D%0A++++4%5Cx+%2B+5%5Cy+=+88%2C%0D%0A++++1%5Cx+%2B+7%5Cy+=+91+%29%0D%0A++\"   DISABLED_style= \"max-width:90%; height:auto;\" >We'll use substitution. After moving 5*y to the right, we get:<BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2Ax+=+88+-+5%2Ay ALIGN=MIDDLE  ALT=\"4%2Ax+=+88+-+5%2Ay\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+88%2F4+-+5%2Ay%2F4 ALIGN=MIDDLE  ALT=\"x+=+88%2F4+-+5%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=1%2A%2888%2F4+-+5%2Ay%2F4%29+%2B+7%5Cy+=+91 ALIGN=MIDDLE  ALT=\"1%2A%2888%2F4+-+5%2Ay%2F4%29+%2B+7%5Cy+=+91\"   DISABLED_style= \"max-width:90%; height:auto;\" > and simplify: So, we know that y=12. Since <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+88%2F4+-+5%2Ay%2F4 ALIGN=MIDDLE  ALT=\"x+=+88%2F4+-+5%2Ay%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >, x=7.<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  Answer: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%28+x=7%2C+y=12+%29 ALIGN=MIDDLE  ALT=\"system%28+x=7%2C+y=12+%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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