document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182223>Question 1182223</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A group of boys desiring to group a team to buy a ball. If there had been 3 boys fewer, each would have paid one dollar more; and if there had been 4 boys more, each would have paid 75 cents less. Find the cost of the ball.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "->Please help me how to solve this problem step by step.. Thanks in advance!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #812202 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=812202\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let  each boy pay  x<BR>\n" );
document.write( "and number of boys be y\r<BR>\n" );
document.write( "\n" );
document.write( "there had been 3 boys fewer, each would have paid one dollar more\r<BR>\n" );
document.write( "\n" );
document.write( "(y-3)(x+1) = xy<BR>\n" );
document.write( "xy+y-3x -3 =xy\r<BR>\n" );
document.write( "\n" );
document.write( "y-3x=3<BR>\n" );
document.write( "y=3x+3----------------(1)\r<BR>\n" );
document.write( "\n" );
document.write( "(y+4)(x-3/4) = xy\r<BR>\n" );
document.write( "\n" );
document.write( "xy -(3/4)y +4x -3 =xy\r<BR>\n" );
document.write( "\n" );
document.write( "-3/4 y +4x = 3<BR>\n" );
document.write( "multiply by 4\r<BR>\n" );
document.write( "\n" );
document.write( "-3y +16x =12--------------(2)<BR>\n" );
document.write( "substitute y in (2)<BR>\n" );
document.write( "-3(3x+3)+16x =12\r<BR>\n" );
document.write( "\n" );
document.write( "-9x-9 +16x =12<BR>\n" );
document.write( "7x =21<BR>\n" );
document.write( "x= 3\r<BR>\n" );
document.write( "\n" );
document.write( "y=3x+3<BR>\n" );
document.write( "y= 3*3 +3\r<BR>\n" );
document.write( "\n" );
document.write( "y=12\r<BR>\n" );
document.write( "\n" );
document.write( "Cost of Ball = 4*12 =48\r<BR>\n" );
document.write( "\n" );
document.write( "$48\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );