document.write( "Question 1027536: patrick is 2 times as old as his friend james, james is 8 years older than rica, in 8 years, patrick will be 3 times as old as rica. How old is james now? \n" ); document.write( "
Algebra.Com's Answer #642748 by josmiceli(19441)\"\" \"About 
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Let \"+p+\" = Patrick's age now
\n" ); document.write( "Let \"+j+\" = James's age now
\n" ); document.write( "Let \"+r+\" = Rica's age now
\n" ); document.write( "--------------------------
\n" ); document.write( "(1) \"+p+=+2j+\"
\n" ); document.write( "(2) \"+j+=+r+%2B+8+\"
\n" ); document.write( "(3) \"+p+%2B+8+=+3%2A%28+r+%2B+8+%29+\"
\n" ); document.write( "-----------------------
\n" ); document.write( "Substitute (1) into (3)
\n" ); document.write( "(3) \"+2j+%2B+8+=+3%2A%28+r+%2B+8+%29+\"
\n" ); document.write( "(3) \"+2j+%2B+8+=+3r+%2B+24+\"
\n" ); document.write( "(3) \"+2j+-+3r+=+16+\"
\n" ); document.write( "--------------------
\n" ); document.write( "(2) \"+j+-+r+=+8+\"
\n" ); document.write( "(2) \"+2j+-+2r+=+16+\"
\n" ); document.write( "--------------------
\n" ); document.write( "Subtract (3) from (2)
\n" ); document.write( "(2) \"+2j+-+2r+=+16+\"
\n" ); document.write( "(3) \"+-2j+%2B+3r+=+-16+\"
\n" ); document.write( "-----------------------
\n" ); document.write( "\"+r+=+0+\"
\n" ); document.write( "and
\n" ); document.write( "(2) \"+j+=+r+%2B+8+\"
\n" ); document.write( "(2) \"+j+=0+%2B+8+\"
\n" ); document.write( "(2) \"+j+=+8+\"
\n" ); document.write( "and
\n" ); document.write( "(1) \"+p+=+2j+\"
\n" ); document.write( "(1) \"+p+=+2%2A8+\"
\n" ); document.write( "(1) \"+p+=+16+\"
\n" ); document.write( "----------------
\n" ); document.write( "James is 8 now
\n" ); document.write( "----------------
\n" ); document.write( "check answer:
\n" ); document.write( "Patrick is twice as old as James
\n" ); document.write( "\"+16+=+2%2A8+\"
\n" ); document.write( "OK
\n" ); document.write( "James is 8 years older than rica
\n" ); document.write( "\"+8+=+8+%2B+0+\"
\n" ); document.write( "\"+8+=+8+\"
\n" ); document.write( "OK
\n" ); document.write( "In 8 years, patrick will be 3 times as old as rica.
\n" ); document.write( "\"+16+%2B+8+=+3%2A%28+0+%2B+8+%29+\"
\n" ); document.write( "\"+24+=+24+\"
\n" ); document.write( "OK
\n" ); document.write( "( note that Rica being \"+0+\" means just born )
\n" ); document.write( "
\n" );