document.write( "Question 981990: Kathryn is 8 years older than her sister Rosemary. Eight years ago Kathryn was 3 times as old as Rosemary. How old is each now?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #602925 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "R=Rosemary's age; K=Kathryn's age=R+8yrs
\n" ); document.write( ".
\n" ); document.write( "K-8yrs=3(R-8yrs) Substitute for K
\n" ); document.write( "(R+8yrs)-8yrs=3(R-8yrs)
\n" ); document.write( "R=3R-24yrs
\n" ); document.write( "-2R=-24yrs
\n" ); document.write( "R=12 yrs ANSWER 1: Rosemary is 12 years old.
\n" ); document.write( "K=R+8yrs=12yrs+8yrs=20 yrs ANSWER 2: Kathryn is 20 years old.
\n" ); document.write( ".
\n" ); document.write( "CHECK:
\n" ); document.write( "K-8yrs=3(R-8yrs)
\n" ); document.write( "20yrs-8yrs=3(12yrs-8yrs)
\n" ); document.write( "12yrs=3(4yrs)
\n" ); document.write( "12yrs=12yrs
\n" ); document.write( "
\n" );