document.write( "Question 1154044: Jessy is four less than three times as old as his sister Carmen. The sum of their ages is 52 how old is jessy?
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Algebra.Com's Answer #776410 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = Jessy's age
\n" ); document.write( "Let $\"+b+\"$ = Carmen's age
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\n" ); document.write( "(1) $\"+a+%2B+b+=+52+\"$
\n" ); document.write( "(2) $\"+a+=+3b+-+4+\"$
\n" ); document.write( "-----------------------------
\n" ); document.write( "(2) $\"+-a+%2B+3b+=+4+\"$
\n" ); document.write( "(1) $\"+a+%2B+b+=+52+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( "Add (1) and (2)
\n" ); document.write( " $\"+4b+=+56+\"$
\n" ); document.write( " $\"+b+=+14+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+%2B+b+=+52+\"$
\n" ); document.write( "(1) $\"+a+%2B+14+=+52+\"$
\n" ); document.write( "(1) $\"+a+=+38+\"$
\n" ); document.write( "Jessy is 38
\n" ); document.write( "--------------------------
\n" ); document.write( "check:
\n" ); document.write( "(1) $\"+a+%2B+b+=+52+\"$
\n" ); document.write( "(1) $\"+38+%2B+b+=+52+\"$
\n" ); document.write( "(1) $\"+b+=+14+\"$
\n" ); document.write( "OK
\n" ); document.write( "(2) $\"+a+=+3b+-+4+\"$
\n" ); document.write( "(2) $\"+38+=+3%2A14+-+4+\"$
\n" ); document.write( "(2) $\"+38+=+42+-+4+\"$
\n" ); document.write( "(2) $\"+38+=+38+\"$
\n" ); document.write( "OK\r
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