$$\left. \begin{array} { l } { 12 g + 2 t + t + g = - 36 } \\ { \frac { 49 + 4 t } { 89 - 21 } f = - 8 } \\ { 8 g - 2 f = 28 } \end{array} \right.$$
$t=\frac{\sqrt{116905}-473}{24}\approx -5.461927841\text{, }g=\frac{185-\sqrt{116905}}{104}\approx -1.508785883\text{, }f=\frac{-\sqrt{116905}-179}{26}\approx -20.035143531$
$t=\frac{-\sqrt{116905}-473}{24}\approx -33.954738825\text{, }g=\frac{\sqrt{116905}+185}{104}\approx 5.06647819\text{, }f=\frac{\sqrt{116905}-179}{26}\approx 6.265912762$
