document.write( "Question 1114875: Ray is 18 years older lan his sister Gloria. In 15 years, he will be twice as old as Gloria. How old is each of them now? \n" ); document.write( "
Algebra.Com's Answer #729791 by josgarithmetic(39618)\"\" \"About 
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\"system%28r-g=18%2Cr%2B15=2%28g%2B15%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"r%2B15=2g%2B30\"
\n" ); document.write( "\"r-2g=15\"\r
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\n" ); document.write( "\n" ); document.write( "\"system%28r-g=18%2Cr-2g=15%29\"\r
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\n" ); document.write( "\n" ); document.write( "Subtract second equation from first equation of the system.
\n" ); document.write( "\"g=3\"
\n" ); document.write( "-
\n" ); document.write( "\"r=21\"\r
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\n" ); document.write( "\n" ); document.write( "Ray is 21 and Gloria is 3.
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