document.write( "Question 1058653: Jaime is 5 years older than her sister Amy. If the sum of their ages is 19 how old is Jaime? \n" ); document.write( "

Algebra.Com's Answer #673741 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+j+\"$ = Jaime's age now
\n" ); document.write( "Let $\"+a+\"$ = Amy's age now
\n" ); document.write( "----------------------------
\n" ); document.write( "(1) $\"+j+=+a+%2B+5+\"$
\n" ); document.write( "(2) $\"+j+%2B+a+=+19+\"$
\n" ); document.write( "-----------------------
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+a+%2B+5+%2B+a+=+19+\"$
\n" ); document.write( "(2) $\"+2a+%2B+5+=+19+\"$
\n" ); document.write( "(2) $\"+2a+=+14+\"$
\n" ); document.write( "(2) $\"+a+=+7+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+j+=+a+%2B+5+\"$
\n" ); document.write( "(1) $\"+j+=+7+%2B+5+\"$
\n" ); document.write( "(1) $\"+j+=+12+\"$
\n" ); document.write( "Jaime is 12
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+j+%2B+a+=+19+\"$
\n" ); document.write( "(2) $\"+12+%2B+7+=+19+\"$
\n" ); document.write( "(2) $\"+19+=+19+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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