document.write( "Question 1002660: Mike is one year younger than four times his sister Lexi's age. The sum of their ages is 14. Write a system of equations that models this situation. Then determine Mike's and Lexi's ages. \n" ); document.write( "
Algebra.Com's Answer #619529 by fractalier(6550)\"\" \"About 
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Call their ages M and L.
\n" ); document.write( "M + L = 14
\n" ); document.write( "M = 4L - 1
\n" ); document.write( "Substitute this into the first equation and get
\n" ); document.write( "4L - 1 + L = 14
\n" ); document.write( "5L = 15
\n" ); document.write( "L = 3
\n" ); document.write( "M = 11
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