document.write( "Question 1022230: karen is twice as old as lori. three years from now,the sum of thier ages will be 42.how old is karen?
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Algebra.Com's Answer #802259 by CubeyThePenguin(3113)\"\" \"About 
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K = Karen's age
\n" ); document.write( "L = Lori's age\r
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\n" ); document.write( "\n" ); document.write( "K = 2L
\n" ); document.write( "(K+3)+(L+3)=42\r
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\n" ); document.write( "\n" ); document.write( "Plug in the first equation into the second.\r
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\n" ); document.write( "\n" ); document.write( "K + L = 36
\n" ); document.write( "3L = 36
\n" ); document.write( "L = 12\r
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\n" ); document.write( "\n" ); document.write( "Lori is 12 and Karen is 24.
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