document.write( "Question 404525: Marla is 5 years younger than her friend Carey. Five years ago the sum of their ages was 41. How old is each of them now? \n" ); document.write( "
Algebra.Com's Answer #285886 by Mr.Math(29)\"\" \"About 
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Let Marla is x now and Carey is y.
\n" ); document.write( "Then we obtain the system of equations:\r
\n" ); document.write( "\n" ); document.write( "\"y+=+x+%2B+5\"
\n" ); document.write( "\"%28x+-+5%29+%2B+%28y+-+5%29+=+41\"\r
\n" ); document.write( "\n" ); document.write( "Substitute the expression for y from the first equation into the second equation:\r
\n" ); document.write( "\n" ); document.write( "\"%28x+-+5%29+%2B+%28%28x+%2B+5%29+-+5%29+=+41\"\r
\n" ); document.write( "\n" ); document.write( "Simplify this expression:\r
\n" ); document.write( "\n" ); document.write( "\"x+-+5+%2B+x+%2B+5+-+5+=+41\"
\n" ); document.write( "\"2x+-+5+=+41\"
\n" ); document.write( "\"2x+=+46\"
\n" ); document.write( "\"x+=+23\"\r
\n" ); document.write( "\n" ); document.write( "Then \"y+=+x+%2B+5+=+23+%2B+5+=+28\"\r
\n" ); document.write( "\n" ); document.write( "Answer is: Marla is 23 now and Carey is 28.\r
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