document.write( "Question 240005: 1. Adam is 3 times as old as Cynthia and Fred is 16 yrs. younger than Adam. One year ago, Adam's age was twice the sum of Chyntia's & Fred's age. Find their present age.\r
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Algebra.Com's Answer #176011 by ankor@dixie-net.com(22740)\"\" \"About 
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Write an equation for each statement:
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\n" ); document.write( "\"1. Adam is 3 times as old as Cynthia \"
\n" ); document.write( "A = 3C
\n" ); document.write( "or
\n" ); document.write( "C = \"1%2F3\"A
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\n" ); document.write( "\" Fred is 16 yrs. younger than Adam.\"
\n" ); document.write( "F = A - 16
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\n" ); document.write( "One year ago, Adam's age was twice the sum of Chyntia's & Fred's age.\"
\n" ); document.write( "A - 1 = 2(C-1 + F-1)
\n" ); document.write( "Simplify and combine as much as we can
\n" ); document.write( "A - 1 = 2(C + F - 2)
\n" ); document.write( "A - 1 = 2C + 2F - 4
\n" ); document.write( "A = 2C + 2F - 4 + 1
\n" ); document.write( "A = 2C + 2F - 3
\n" ); document.write( "From the 1st two equations; replace C with \"1%2F3\"A, replace F with (A-16)
\n" ); document.write( "A = 2(\"1%2F3\"A) + 2(A-16) - 3
\n" ); document.write( "A = \"2%2F3\"A + 2A - 32 - 3
\n" ); document.write( "A = \"2%2F3\"A + 2A - 35
\n" ); document.write( "35 = 2\"2%2F3\"A - A
\n" ); document.write( "35 = 1\"2%2F3\"A
\n" ); document.write( "As an improper fraction
\n" ); document.write( "35 = \"5%2F3\"A
\n" ); document.write( "Divide 35 by (5/3)
\n" ); document.write( "A = 35 * \"3%2F5\"
\n" ); document.write( "A = 7(3)
\n" ); document.write( "A = 21 yrs old is Adam
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\n" ); document.write( " Find their present age.
\n" ); document.write( "C = \"1%2F3\"*21
\n" ); document.write( "C = 7 yrs is Cynthia
\n" ); document.write( "and
\n" ); document.write( "F = 21 - 16
\n" ); document.write( "F = 5 yrs is Fred
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\n" ); document.write( "Check solutions in the statement:
\n" ); document.write( "\"One year ago, Adam's age was twice the sum of Cynthia's & Fred's age.\"
\n" ); document.write( "20 = 2(6 + 4) \n" ); document.write( "
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