document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=728240>Question 728240</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi please help on doing these type of equations :)\r<BR>\n" );
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document.write( "Question 1\r<BR>\n" );
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document.write( "6b + 4y = 54<BR>\n" );
document.write( "4b = 20\r<BR>\n" );
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document.write( "Question 2\r<BR>\n" );
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document.write( "2b - 5x = -19<BR>\n" );
document.write( "-b= -3\r<BR>\n" );
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document.write( "Question 3<BR>\n" );
document.write( "3u - 3y = 30<BR>\n" );
document.write( "5u= 20\r<BR>\n" );
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document.write( "Thank you\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #445361 by </B><A HREF=/tutors/aboutme.mpl?userid=ohtheirony><B>ohtheirony(35)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ohtheirony><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=ohtheirony><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=445361\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To solve these problems, you can use substitution method. Take the small equation and put it into the large equation.<BR>\n" );
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document.write( "Problem 1: solve the 5b=20, b=4<BR>\n" );
document.write( "Now, if we put b=20 into the 6b+4y=54, we can solve for y.<BR>\n" );
document.write( "6(20)+4y=54<BR>\n" );
document.write( "120+4y=54<BR>\n" );
document.write( "4y=-66<BR>\n" );
document.write( "y=-16.5<BR>\n" );
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document.write( "Problem 2: -b=-3 becomes b=3<BR>\n" );
document.write( "2(3)-5x=-19<BR>\n" );
document.write( "6-5x=-19<BR>\n" );
document.write( "-5x=-25<BR>\n" );
document.write( "x=5<BR>\n" );
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document.write( "Problem 3: 5u=20 becomes u=4<BR>\n" );
document.write( "3(4)-3y=30<BR>\n" );
document.write( "12-3y=30<BR>\n" );
document.write( "-3y=18<BR>\n" );
document.write( "y=-6<BR>\n" );
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document.write( "When you get to longer equations, it may be helpful to look at this tutorial:<BR>\n" );
document.write( "http://www.basic-mathematics.com/substitution-method.html<BR>\n" );
document.write( "But don't forget about elimination! That can work just as well for system of equations.<BR>\n" );
document.write( "http://www.purplemath.com/modules/systlin5.htm\r<BR>\n" );
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