document.write( "Question 855227: Mary's age is 12, which is 4 less than 2 times Donald's age
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Algebra.Com's Answer #515167 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Let x represent Donald's age
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\n" ); document.write( " 2x-4 = 12
\n" ); document.write( " 2x = 16
\n" ); document.write( " x = 8, Donald's age
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