document.write( "Question 936380: Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother? \n" ); document.write( "
Algebra.Com's Answer #569820 by josgarithmetic(39617)\"\" \"About 
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m Marry, b Brother\r
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\n" ); document.write( "\n" ); document.write( "\"m=16\";
\n" ); document.write( "\"m%2Fb=4\";
\n" ); document.write( "\"m=4b\"
\n" ); document.write( "\"16=4b\"
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