document.write( "Question 398827: sushma is now 15 years older than vijay but in three more years she will be eight times old as vijay was 3 years ago how old are they now
\n" ); document.write( " i cant understand this question plz help me \n" ); document.write( "

Algebra.Com's Answer #282498 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"s\"$ = Sushma's age now
\n" ); document.write( "Let $\"v\"$ = Vijay's age now
\n" ); document.write( " $\"s+%2B+3\"$ = Sushma's age in 3 years
\n" ); document.write( " $\"v+-+3\"$ = Vijay's age 3 years ago
\n" ); document.write( "----------------------------
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"s+=+v+%2B+15\"$
\n" ); document.write( "(2) $\"s+%2B+3+=+8%2A%28v+-+3%29\"$
\n" ); document.write( "---------------------
\n" ); document.write( "From (2):
\n" ); document.write( " $\"s+%2B+3+=+8v+-+24\"$
\n" ); document.write( "By substitution:
\n" ); document.write( " $\"v+%2B+15+%2B+3+=+8v+-+24\"$
\n" ); document.write( " $\"7v+=+18+%2B+24\"$
\n" ); document.write( " $\"7v+=+42\"$
\n" ); document.write( " $\"v+=+6\"$
\n" ); document.write( "And, from (1),
\n" ); document.write( " $\"s+=+6+%2B+15\"$
\n" ); document.write( " $\"s+=+21\"$
\n" ); document.write( "She is 21 and he is 6 \n" ); document.write( "

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