Solve for A
A=\frac{Q_{q}+2T_{t}}{Q+2T}
T\neq -\frac{Q}{2}
Solve for Q
\left\{\begin{matrix}Q=\frac{2T_{t}+Q_{q}-2AT}{A}\text{, }&T_{t}\neq -\frac{Q_{q}}{2}\text{ and }A\neq 0\\Q\neq -2T\text{, }&A=0\text{ and }T_{t}=-\frac{Q_{q}}{2}\end{matrix}\right.
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