Решить систему уравнения 3x-2y=-1 и 3^8x/3^3y=9

[latex] \left \{ {{3x-2y=-1} \atop { \frac{ 3^{8x} }{ 3^{3y} } =9}} \right. \left \{ {{3x-2y=-1} \atop { 3^{8x-3y} = 3^{2} }} \right. \left \{ {{3x-2y=-1|*3} \atop {8x-3y=2|*(-2)}} \right. [latex] \left \{ {{9x-6y=-3} \atop {-16x+6y=-4}} \right. \left \{ {{-7x=-7} \atop {3x-2y=-1}} \right. \left \{ {{x=1} \atop {y=2}} \right. [/latex]