document.write( "Question 937702: Please solve this question.
\n" ); document.write( "Lucy is k years old
\n" ); document.write( "How old was she three years ago
\n" ); document.write( "How old will she be in four years time
\n" ); document.write( "Find her age if half of what she was three year ago is equal to one third of what she will be in four year time \n" ); document.write( "

Algebra.Com's Answer #571115 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
3 yrs ago she was $\"+k+-+3+\"$
\n" ); document.write( "In 4 yrs, she will be $\"+k+%2B+4+\"$
\n" ); document.write( "----------------------------
\n" ); document.write( " $\"+%281%2F2%29%2A%28+k+-+3+%29+=+%281%2F3%29%2A%28+k+%2B+4+%29+\"$
\n" ); document.write( "Multiply both sides by $\"+6+\"$
\n" ); document.write( " $\"+3%2A%28+k+-+3+%29+=+2%2A%28+k+%2B+4+%29+\"$
\n" ); document.write( " $\"+3k+-+9+=+2k+%2B+8+\"$
\n" ); document.write( " $\"+k+=+17+\"$
\n" ); document.write( "Lucy is 17
\n" ); document.write( "--------------
\n" ); document.write( "check the answer:
\n" ); document.write( " $\"+%281%2F2%29%2A%28+17+-+3+%29+=+%281%2F3%29%2A%28+17+%2B+4+%29+\"$
\n" ); document.write( " $\"+%281%2F2%29%2A14+=+%281%2F3%29%2A21+\"$
\n" ); document.write( " $\"+7+=+7+\"$
\n" ); document.write( "OK \n" ); document.write( "

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