document.write( "Question 149860: Belle is 1/7 as old as Anne. In eight years, Belle will be 1/3 as old as Anne. Calculate their ages.\r
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Algebra.Com's Answer #109989 by nerdybill(7384)\"\" \"About 
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Belle is 1/7 as old as Anne. In eight years, Belle will be 1/3 as old as Anne. Calculate their ages.
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\n" ); document.write( "Let A = Anne's age
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\n" ); document.write( "(1/7)A = Belle's age
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\n" ); document.write( "(1/7)A + 8 = (1/3)(A+8)
\n" ); document.write( "Multiplying both sides by 21 (to rid ourselves of the denominator) we get:
\n" ); document.write( "3A + 168 = 7(A+8)
\n" ); document.write( "3A + 168 = 7A + 56
\n" ); document.write( "168 = 4A + 56
\n" ); document.write( "112 = 4A
\n" ); document.write( "28 = A (Anne's age)
\n" ); document.write( "(1/7)A = 4 (Belle's age)\r
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