Given the system of equations below, which of the following could be the value of $a+b$ ?<br> $\qquad \qquad \qquad a^2 - 3b =-9$ <br> $\qquad \qquad \qquad 2a^2 + 5b = 14$

Question

$\begin{array}{1 1} (a)\; 9.63 \\ (b)\; 9.73 \\ (c)\; 9.83 \\ (d)\; 9.93 \end{array}$