document.write( "Question 1152958: Stephen is 64 years younger than Wendy. 7 years ago, Wendy's age was 3 times Stephen's age. How old is Stephen now? \n" ); document.write( "
Algebra.Com's Answer #775098 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "let Stephen's age be \"x\" and Wendy's age \"y\"\r
\n" ); document.write( "\n" ); document.write( "if Stephen is \"64\" years \"younger\" than Wendy, we have\r
\n" ); document.write( "\n" ); document.write( "\"x=y-64\".....eq.1 \r
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\n" ); document.write( "if \"7\" years ago, Wendy's age was \"3\" times Stephen's age,we have\r
\n" ); document.write( "\n" ); document.write( "\"y-7=3%28x-7%29\".......substitute \"x\" from eq.1 and solve for \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"y-7=3%28y-64-7%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y-7=3%28y-71%29\"\r
\n" ); document.write( "\n" ); document.write( "\"y-7=3y-213\"\r
\n" ); document.write( "\n" ); document.write( "\"213-7=3y-y\"\r
\n" ); document.write( "\n" ); document.write( "\"206=2y\"\r
\n" ); document.write( "\n" ); document.write( "\"y=103\"\r
\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( "\"x=y-64\".....eq.1, substitute \"y\"\r
\n" ); document.write( "\n" ); document.write( "\"x=103-64\"\r
\n" ); document.write( "\n" ); document.write( "\"x=39\"\r
\n" ); document.write( "\n" ); document.write( " Stephen is \"39\" old now \r
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