document.write( "Question 189858: jamie is 5 years older than her sister amy. If the sum of their ages is 19, how old is jamie? \n" ); document.write( "
Algebra.Com's Answer #142488 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! let j and a be the ages of jamie and amy \n" ); document.write( ": \n" ); document.write( "j+a=19........eq 1 \n" ); document.write( "j=a+5.........eq 2 \n" ); document.write( ": \n" ); document.write( "take j's value from eq 2 and plug it into eq 1 \n" ); document.write( ":: \n" ); document.write( "a+5+a=19 \n" ); document.write( ": \n" ); document.write( "2a=14 \n" ); document.write( ": \n" ); document.write( "a=7 \n" ); document.write( ": \n" ); document.write( "j=a+5=7+5=12 \n" ); document.write( " |