AMC 12 2005a Problem 2

The equations $2x + 7 = 3$ and $bx - 10 = - 2$ have the same solution for $x$. What is the value of $b$?

$\textbf{(A) } -8 \textbf{(B) } -4 \textbf{(C) } -2 \textbf{(D) } 4 \textbf{(E) } 8$