document.write( "Question 1104263: The sum of three numbers is 84
\n" ); document.write( "The second number is 2 times the first.
\n" ); document.write( "The third number is 16 less than the second.
\n" ); document.write( "What is the second number?
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Algebra.Com's Answer #719017 by ankor@dixie-net.com(22740)\"\" \"About 
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The sum of three numbers is 84
\n" ); document.write( "a + b+ c = 84
\n" ); document.write( "The second number is 2 times the first.
\n" ); document.write( "b = 2a
\n" ); document.write( "or
\n" ); document.write( "a = \"1%2F2\"b
\n" ); document.write( "The third number is 16 less than the second.
\n" ); document.write( "c = b - 16
\n" ); document.write( "What is the second number?
\n" ); document.write( "Replace a and c in the 1st equation
\n" ); document.write( "\"1%2F2\"b + b + (b-16) = 84
\n" ); document.write( "2\"1%2F2\"b = 84 + 16
\n" ); document.write( "b = 100/2.5
\n" ); document.write( "b = 40 then
\n" ); document.write( "a = 20
\n" ); document.write( "c = 40-16
\n" ); document.write( "c = 24
\n" ); document.write( ":
\n" ); document.write( "Check: 20 + 40 + 24 = 84
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