document.write( "Question 981839: My current age is 4 times what my sister's age was 20 years ago. I am now twice as old as I was 20 years ago. Ten years ago, my sister's age was 1/2 of my current age. Ten years ago, my age was 1.5 times my sister's age. What is my current age? \n" ); document.write( "
Algebra.Com's Answer #602764 by josgarithmetic(39617)\"\" \"About 
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y, my age
\n" ); document.write( "x, my sister's age\r
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\n" ); document.write( "\n" ); document.write( "My current age is 4 times what my sister's age was 20 years ago. \r
\n" ); document.write( "\n" ); document.write( "\"y=4%28x-20%29\"\r
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\n" ); document.write( "\n" ); document.write( "I am now twice as old as I was 20 years ago. \r
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\n" ); document.write( "\n" ); document.write( "Ten years ago, my sister's age was 1/2 of my current age. \r
\n" ); document.write( "\n" ); document.write( "\"x-10=%281%2F2%29y\"\r
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\n" ); document.write( "\n" ); document.write( "Ten years ago, my age was 1.5 times my sister's age.\r
\n" ); document.write( "\n" ); document.write( "\"y-10=%281.5%29%28x-10%29\"\r
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\n" ); document.write( "\n" ); document.write( "A few simple sentences forming a complicated description, but you should find that the
\n" ); document.write( "question to be answered will come from just one equation in the single variable, y.
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