document.write( "Question 1020886: Bill is 29 years older than his daughter Jane. In 15 years time their age will be such that Bill will be twice as old as Jane. How old is Bill now? \n" ); document.write( "

Algebra.Com's Answer #636698 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+b+\"$ = Bill's age now
\n" ); document.write( "Let $\"+j+\"$ = Jane's age now
\n" ); document.write( "------------------------
\n" ); document.write( "(1) $\"+b+=+j+%2B+29+\"$
\n" ); document.write( "(2) $\"+b+%2B+15+=+2%2A%28+j+%2B+15+%29+\"$
\n" ); document.write( "-------------------------
\n" ); document.write( "(2) $\"+b+%2B+15+=+2j+%2B+30+\"$
\n" ); document.write( "(2) $\"+b+-+2j+=+15+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( "(1) $\"+b+-+j+=+29+\"$
\n" ); document.write( "Subtract (2) from (1)
\n" ); document.write( "(1) $\"+b+-+j+=+29+\"$
\n" ); document.write( "(2) $\"+-b+%2B+2j+=+-15+\"$
\n" ); document.write( "--------------------
\n" ); document.write( " $\"+j+=+14+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+b+=+j+%2B+29+\"$
\n" ); document.write( "(1) $\"+b+=14+%2B+29+\"$
\n" ); document.write( "(1) $\"+b+=+43+\"$
\n" ); document.write( "------------------
\n" ); document.write( "Bill is 43 now
\n" ); document.write( "------------
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+b+%2B+15+=+2%2A%28+j+%2B+15+%29+\"$
\n" ); document.write( "(2) $\"+43+%2B+15+=+2%2A%2814+%2B+15+%29+\"$
\n" ); document.write( "(2) $\"+58+=+2%2A29+\"$
\n" ); document.write( "(2) $\"+58+=+58+\"$ \n" ); document.write( "

\n" );