document.write( "Question 963754: if the number of sequence is 17 and the next number is 3,what is the first number? \n" ); document.write( "
Algebra.Com's Answer #588794 by Fombitz(32388)\"\" \"About 
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I'm assuming it's a three number sequence,
\n" ); document.write( "{X, 17, 3}
\n" ); document.write( "Look at the difference from 17 to 3 which is -14.
\n" ); document.write( "And apply it to X.
\n" ); document.write( "\"X-14=17\"
\n" ); document.write( "\"X=31\"\r
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