document.write( "Question 1142654: The sum of the ages of Nicole and Kristen is 32. In 2 years, Nicole will be 3 times as old as Kristen. How old are they now? with solution \n" ); document.write( "

Algebra.Com's Answer #763357 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = Nicole's age now
\n" ); document.write( "Let $\"+b+\"$ = Kristen's age now
\n" ); document.write( "-----------------------------------
\n" ); document.write( "(1) $\"+a+%2B+b+=+32+\"$
\n" ); document.write( "(2) $\"+a+%2B+2+=+3%2A%28+b+%2B+2+%29+\"$
\n" ); document.write( "-----------------------------------
\n" ); document.write( "(2) $\"+a+%2B+2+=+3b+%2B+6+\"$
\n" ); document.write( "(2) $\"+a+-+3b+=+4+\"$
\n" ); document.write( "-----------------------------------
\n" ); document.write( "Subtract (2) from (1)
\n" ); document.write( "(1) $\"+a+%2B+b+=+32+\"$
\n" ); document.write( "(2) $\"+-a+%2B+3b+=+-4+\"$
\n" ); document.write( "--------------------------
\n" ); document.write( " $\"+4b+=+28+\"$
\n" ); document.write( " $\"+b+=+7+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+%2B+7+=+32+\"$
\n" ); document.write( "(1) $\"+a+=+25+\"$
\n" ); document.write( "--------------------------
\n" ); document.write( "Nicole is 25
\n" ); document.write( "Kristen is 7
\n" ); document.write( "-------------
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+a+%2B+2+=+3%2A%28+b+%2B+2+%29+\"$
\n" ); document.write( "(2) $\"+25+%2B+2+=+3%2A%28+7+%2B+2+%29+\"$
\n" ); document.write( "(2) $\"+27+=+3%2A9+\"$
\n" ); document.write( "(2) $\"+27+=+27+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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