document.write( "Question 329408: In 7 years, Erin will be twice as old as she was 8 years ago. how old is Erin now? \n" ); document.write( "

Algebra.Com's Answer #236633 by Fombitz(32388) $\"\"$ $\"About$

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Let $\"E\"$ be Erin's age right now.
\n" ); document.write( "In $\"7\"$ years, she'll be $\"E%2B7\"$
\n" ); document.write( "Eight years ago she was $\"E-8\"$
\n" ); document.write( " $\"E%2B7=2%28E-8%29\"$
\n" ); document.write( " $\"E%2B7=2E-16\"$
\n" ); document.write( " $\"E=23\"$
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\n" ); document.write( "In 7 years, she'll be 30.
\n" ); document.write( "Eight years ago she was 15. 15(2)=30.
\n" ); document.write( "Verified. \n" ); document.write( "

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