document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=218179>Question 218179</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me simplify 5x + 7y - 3x + 2y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164330 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=164330\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your expression is:<BR>\n" );
document.write( "5x + 7y - 3x + 2y<BR>\n" );
document.write( "You simplify this by combining like terms.<BR>\n" );
document.write( "Combining like terms means to perform the indicated operation on them.<BR>\n" );
document.write( "5x and -3x are like terms.<BR>\n" );
document.write( "The indicated operation is addition<BR>\n" );
document.write( "5x + (-3x) = 5x - 3x = 2x<BR>\n" );
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document.write( "7y and 2y are like terms.<BR>\n" );
document.write( "The indicated operation is addition.<BR>\n" );
document.write( "7y + 2y = 9y<BR>\n" );
document.write( "Your simplified expression is 2x + 9y after you combined like terms.<BR>\n" );
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document.write( "To confirm that you did this correctly, pick any values for x and y and replace them in the original equation and the combined equation to see if you get the same answer.<BR>\n" );
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document.write( "take x = 2, y = 3<BR>\n" );
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document.write( "Your original equation of 5x + 7y - 3x + 2y becomes 5*2 + 7*3 - 3*2 + 2*3<BR>\n" );
document.write( "This becomes 10 + 21 - 6 + 6 which becomes 31<BR>\n" );
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document.write( "Your combined equation of 2x + 9y becomes 2*2 + 9*3 = 4 + 27 = 31<BR>\n" );
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document.write( "You get the same answer so you simplified the original expression accurately.<BR>\n" );
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document.write( "Your original equation is 5x + 7y - 3x + 2y<BR>\n" );
document.write( "Your simplified equation is 2x + 9y<BR>\n" );
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document.write( " </SPAN>\n" );
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