document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1107925>Question 1107925</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the answer and equation of the word problem marichu is 20 years older than krisfel.seven years from now, marichu will be thrice as old as krisfel.find their present ages.<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 #722976 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=722976\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x be marich's age and y be krisfel's age<BR>\n" );
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document.write( "x = y + 20<BR>\n" );
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document.write( "(y + 20) + 7 = 3(y+7)<BR>\n" );
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document.write( "y + 27 = 3y + 21<BR>\n" );
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document.write( "2y = 6<BR>\n" );
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document.write( "y = 3<BR>\n" );
document.write( "x = 3 + 20 = 23<BR>\n" );
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document.write( "Marich's age is 23 and Krisfel's age is 3<BR>\n" );
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document.write( "check answer<BR>\n" );
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document.write( "23 + 7 = 3(3+7)<BR>\n" );
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document.write( "30 = 3 * 10 = 30<BR>\n" );
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document.write( "our answer checks<BR>\n" );
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