document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1090552>Question 1090552</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given the system of equations.<BR>\n" );
document.write( "4x+y=8<BR>\n" );
document.write( "6x-9y=12<BR>\n" );
document.write( "Which of the options represents the resulting equation after an equivalent expression for y is substituted into the second equation?<BR>\n" );
document.write( "6x - 9(4x - 8) = 12<BR>\n" );
document.write( "4x + 4x - 8 = 8<BR>\n" );
document.write( "6(4x - 8) - 9y = 12<BR>\n" );
document.write( "6x - 9(-4x + 8) = 12<BR>\n" );
document.write( "I also do not understand how to find this, so any help would be nice on that subject </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #704986 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=704986\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=\"black\" face=\"times\" size=\"3\">Start with the first equation 4x+y=8. \r<BR>\n" );
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document.write( "Isolate y. In other words, get y all by itself on its own side. We do this by subtracting 4x from both sides\r<BR>\n" );
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document.write( "4x+y=8\r<BR>\n" );
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document.write( "4x+y-4x=8-4x\r<BR>\n" );
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document.write( "y=8-4x\r<BR>\n" );
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document.write( "y=-4x+8\r<BR>\n" );
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document.write( "The equation y=-4x+8 basically says that y is the same as -4x+8. Because of this, we can replace every 'y' in the second equation with '-4x+8'\r<BR>\n" );
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document.write( "6x-9y=12\r<BR>\n" );
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document.write( "6x-9( y )=12\r<BR>\n" );
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document.write( "6x-9( <font color=blue>y</font> )=12\r<BR>\n" );
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document.write( "6x-9( <font color=blue>-4x+8</font> )=12 ... note how the terms in blue indicate how the replacement is happening\r<BR>\n" );
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document.write( "So the answer is choice D\r<BR>\n" );
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