1994 AHSME Problems/Problem 6
Problem
In the sequence
![\[..., a, b, c, d, 0, 1, 1, 2, 3, 5, 8,...\]](http://latex.artofproblemsolving.com/d/d/b/ddb98ab5cb4c79e636eebd6161fcdfea100f7c3c.png)
each term is the sum of the two terms to its left. Find 
.
Solution
We work backwards to find .
\[d+0=1&\implies d=1\\ c+1=0&\implies c=-1\\ b+(-1)=1&\implies b=2\\ a+2=-1&\implies a=\boxed{\textbf{(A) }-3.}\] (Error compiling LaTeX. Unknown error_msg)
--Solution by TheMaskedMagician
