document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=131745>Question 131745</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this word problem:\r<BR>\n" );
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document.write( "A carpenter needs to cut a brace to support a vertical wall stud. The brace should be 7 feet less than 3 times the length of the stud. If the brace will be anchored on the floor 15 feet away from the stud, how long should the brace be? (Hint: the brace is the hypotenuse.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #96198 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><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=96198\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a^2+b^2=c^2<BR>\n" );
document.write( "x^2+15^2=(3x-7)^2<BR>\n" );
document.write( "x^2+225=9x^2-42x+49<BR>\n" );
document.write( "9x^2-x^2-42x+49-225=0<BR>\n" );
document.write( "8x^2-42x-176=0<BR>\n" );
document.write( "2(4x^2-21x-88)=0<BR>\n" );
document.write( "2(4x+11)(x-8)=0<BR>\n" );
document.write( "x-8=0<BR>\n" );
document.write( "x=8 answer.<BR>\n" );
document.write( "3*8-7=24-7=17 feet for the brace.<BR>\n" );
document.write( "proof:<BR>\n" );
document.write( "8^2+15^2=(3*8-7)^2<BR>\n" );
document.write( "64+225=(23-7)^2<BR>\n" );
document.write( "289=17^2<BR>\n" );
document.write( "289=289\r<BR>\n" );
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document.write( " </SPAN>\n" );
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