document.write( "Question 208260: You have a four digit number where the thousands digit is four greater than the hundreds digit. The tens digit is twice the thousands digit. The ones digit is half of the thousands digit. What is the number?\r
\n" ); document.write( "\n" ); document.write( "How would you set up this type of problem and what is the equation for it. \n" ); document.write( "
Algebra.Com's Answer #157548 by ankor@dixie-net.com(22740)\"\" \"About 
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You have a four digit number where the thousands digit is four greater than the hundreds digit.
\n" ); document.write( "The tens digit is twice the thousands digit.
\n" ); document.write( " The ones digit is half of the thousands digit.
\n" ); document.write( " What is the number?
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\n" ); document.write( "The 4 digit number: 1000a + 100b + 10c + d
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\n" ); document.write( "\"the thousands digit is four greater than the hundreds digit.\"
\n" ); document.write( "a = b + 4
\n" ); document.write( "or
\n" ); document.write( "b = a - 4 means a => 4
\n" ); document.write( ":
\n" ); document.write( "\" The tens digit is twice the thousands digit.\" means a < 5
\n" ); document.write( "c = 2a
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\n" ); document.write( "\" The ones digit is half of the thousands digit.\" means a is an even number
\n" ); document.write( "d = .5a
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\n" ); document.write( " What is the number?
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\n" ); document.write( "From the given information we conclude that a = 4, b = 0, c = 8, d = 2
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\n" ); document.write( "Our number: 4082 \n" ); document.write( "
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