Since everything in sight is even, we should begin by dividing by 2.  That gives \[-2<x-1<4.\] To isolate $x$, we add 1, so \[-1<x<5.\] Since $a=-1$ and $b=5$, we get $a+b=-1+5=\boxed{4}$.
Question:
The solution to $-4 < 2(x - 1) < 8$ is expressed in the form $a < x < b$. Find the value of $a + b$.
Answer:
Let's think step by step.

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The solution to $-4 < 2(x - 1) < 8$ is expressed in the form $a < x < b$. Find the value of $a + b$.
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