document.write( "Question 1026666: Jill is 10 years younger than Brian. In 5 years, Jill will be two-thirds of Brian's age. how old will Jill be seven years from now? \n" ); document.write( "
Algebra.Com's Answer #641951 by josmiceli(19441)\"\" \"About 
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Let \"+j+\" = Jill's age now
\n" ); document.write( "Let \"+b+\" = Brian's age now
\n" ); document.write( "--------------------------
\n" ); document.write( "(1) \"+j+=+b+-+10+\"
\n" ); document.write( "(2) \"+j+%2B+5+=+%28+2%2F3+%29%2A%28+b+%2B+5+%29+\"
\n" ); document.write( "---------------------------
\n" ); document.write( "Multiply both sides of (2) by \"+3+\"
\n" ); document.write( "(2) \"+3%2A%28+j+%2B+5+%29+=+2%2A%28+b+%2B+5+%29+\"
\n" ); document.write( "(2) \"+3j+%2B+15+=+2b+%2B+10+\"
\n" ); document.write( "(2) \"+2b+-+3j+=+5+\"
\n" ); document.write( "and
\n" ); document.write( "(1) \"+b+-+j+=+10+\"
\n" ); document.write( "--------------------
\n" ); document.write( "Multiply both sides of (1) by \"+2+\"
\n" ); document.write( "and subtract (2) from (1)
\n" ); document.write( "(1) \"+2b+-+2j+=+20+\"
\n" ); document.write( "(2) \"+-2b+%2B+3j+=+-5+\"
\n" ); document.write( "--------------------
\n" ); document.write( "\"+j+=+15+\"
\n" ); document.write( "and
\n" ); document.write( "(1) \"+j+=+b+-+10+\"
\n" ); document.write( "(1) \"15+=+b+-+10+\"
\n" ); document.write( "(1) \"+b+=+25+\"
\n" ); document.write( "---------------
\n" ); document.write( "\"+j+%2B+7+=+15+%2B+7+\"
\n" ); document.write( "\"+j+%2B+7+=+22+\"
\n" ); document.write( "--------------------
\n" ); document.write( "In 7 yrs, Jill will be 22
\n" ); document.write( "--------------------
\n" ); document.write( "check answer:
\n" ); document.write( "(2) \"+j+%2B+5+=+%28+2%2F3+%29%2A%28+b+%2B+5+%29+\"
\n" ); document.write( "(2) \"+15+%2B+5+=+%28+2%2F3+%29%2A%28+25+%2B+5+%29+\"
\n" ); document.write( "(2) \"+20+=+%282%2F3%29%2A30+\"
\n" ); document.write( "(2) \"+60+=+2%2A30+\"
\n" ); document.write( "(2) \"+60+=+60+\"
\n" ); document.write( "and
\n" ); document.write( "(1) \"+j+=+b+-+10+\"
\n" ); document.write( "(1) \"15+=+25+-+10+\"
\n" ); document.write( "(1) \"+15+=+15+\"
\n" ); document.write( "OK
\n" ); document.write( "
\n" );