Question

Решите пж!!!
Можно фото!!!​

Answer 1

$\left \{ {{5(3x+1)-4(y-2)=66} \atop {6(2x-1)-3(2y-3)=51}} \right. \\\left \{ {{15x+5-4y+8=66} \atop {12x-6-6y+9=51}} \right. \\\left \{ {{15x-4y=53} \atop {12x-6y=48|*1.25;*(-1)}} \right. \\\left \{ {{15x-4y=53} \atop {-15x+7.5y=-60}} \right. +\\15x-15x-4y+7.5y=53-60;3.5y=-7\Rightarrow y=-2\\12x+12=48;12x=36\Rightarrow x=3$

Ответ: (3;-2).