document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028919>Question 1028919</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Susan and Betsy bought sport supplies for summer camp. Susan bought six basketballs and one soccer ball for $27. Betsy bought four basketballs and two soccer balls for $22. How much do basketballs cost? How much do soccer balls cost? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643988 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=643988\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "Make basketballs = x<BR>\n" );
document.write( "Make soccer balls = y<BR>\n" );
document.write( "6x + y = 27........(1)<BR>\n" );
document.write( "4x + 2y = 22.......(2)<BR>\n" );
document.write( "Multiply Eq(1) by 2<BR>\n" );
document.write( "12x + 2y = 54......(1)<BR>\n" );
document.write( "4x + 2y = 22.......(2)<BR>\n" );
document.write( "Subtract Eq(2) from Eq(1)<BR>\n" );
document.write( "8x = 32<BR>\n" );
document.write( "x = 4<BR>\n" );
document.write( "Substitute x = 4 into Eq(2)<BR>\n" );
document.write( "4x + 2y = 22.......(2)<BR>\n" );
document.write( "4(4) + 2y = 22<BR>\n" );
document.write( "16 + 2y = 22<BR>\n" );
document.write( "2y = 22 - 16<BR>\n" );
document.write( "2y = 6<BR>\n" );
document.write( "y = 3<BR>\n" );
document.write( "Basketballs cost $4<BR>\n" );
document.write( "Soccer balls cost $3<BR>\n" );
document.write( "Hope this helps :-) </SPAN>\n" );
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