document.write( "Question 1103001: The sum of Ellen and Marie’s ages is 13. The difference is 9. Given that Ellen is older than Marie, write a system of equations and solve to determine the age of each girl. \n" ); document.write( "
Algebra.Com's Answer #717708 by Fombitz(32388)\"\" \"About 
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\"E%2BM=13\"
\n" ); document.write( "\"E-M=9\"
\n" ); document.write( "Add the equations together,
\n" ); document.write( "\"E%2BM%2BE-M=13%2B9\"
\n" ); document.write( "\"2E=22\"
\n" ); document.write( "Solve for E then use either equation to solve for M.
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