document.write( "Question 953294: Monica is four years older than Kate. Five years ago, she was twice as old as Kate was. Find their ages now. \n" ); document.write( "
Algebra.Com's Answer #582148 by macston(5194)\"\" \"About 
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K=Kate's age; M=Monica's age=K+4yrs
\n" ); document.write( "M-5yrs=2(K-5yrs) Substitute for M.
\n" ); document.write( "K+4yrs-5yrs=2K-10yrs Subtract K from each side.
\n" ); document.write( "-1yrs=K-10 yrs Add 10yrs to each side.
\n" ); document.write( "9yrs=K ANSWER 1: Kate is 9 years old.
\n" ); document.write( "M=K+4yrs=13yrs+4yrs=13yrs ANSWER 2: Monica is 13 years old
\n" ); document.write( "CHECK:
\n" ); document.write( "M-5yrs=2(K-5yrs)
\n" ); document.write( "13yrs-5yrs=2(9yrs-5yrs)
\n" ); document.write( "8yrs=2(4yrs)
\n" ); document.write( "8yrs=8yrs\r
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