document.write( "Question 867238: The 3 Jones sisters are all 5 years apart in age. The total of their 3 ages is 21 years. What is the age of the youngest sister ?
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Algebra.Com's Answer #522878 by ewatrrr(24785)\"\" \"About 
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\"x+%2B+%28x%2B5%29+%2B+%28x%2B10%29+=+21\"
\n" ); document.write( " 3x + 15 = 21
\n" ); document.write( " 3x = 6
\n" ); document.write( " x = 2
\n" ); document.write( "They are: 2, 7 and 12 years old
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