Question

Решите пж!!!
Можно фото!!!​

Answer 1

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

Ответ: (3;-2).