document.write( "Question 1099663: 2 years ago, Adam was three times as old as Steve. In 4 years, Adam will be 10 years older than Steve. How old is Adam? \n" ); document.write( "

Algebra.Com's Answer #714077 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = Adam's age now
\n" ); document.write( "Let $\"+b+\"$ = Steve's age now
\n" ); document.write( "-----------------------------
\n" ); document.write( "(1) $\"+a+-+2+=+3%2A%28+b+-+2+%29+\"$
\n" ); document.write( "(2) $\"+a+%2B+4+=+b+%2B+4+%2B+10+\"$
\n" ); document.write( "-----------------------------
\n" ); document.write( "(1) $\"+a+-+2+=+3b+-+6+\"$
\n" ); document.write( "(1) $\"+-a+%2B+3b+=+4+\"$
\n" ); document.write( "and
\n" ); document.write( "(2) $\"+a+-+b+=+10+\"$
\n" ); document.write( "------------------------------
\n" ); document.write( "Add (1) and (2)
\n" ); document.write( " $\"+2b+=+14+\"$
\n" ); document.write( " $\"+b+=+7+\"$
\n" ); document.write( "and
\n" ); document.write( "(2) $\"+a+-+7+=+10+\"$
\n" ); document.write( "(2) $\"+a+=+17+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "Adam is 17
\n" ); document.write( "Steve is 7
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"+a+-+2+=+3%2A%28+b+-+2+%29+\"$
\n" ); document.write( "(1) $\"+17+-+2+=+3%2A%28+7+-+2+%29+\"$
\n" ); document.write( "(1) $\"+15+=+3%2A5+\"$
\n" ); document.write( "(1) $\"+15+=+15+\"$
\n" ); document.write( "OK
\n" ); document.write( "You can check (2)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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