Verified answer

Ответ:

а (1;2)

Объяснение:

розв'язок на фото

[tex]\displaystyle\bf\\\left \{ {{5x+3y=11} \ |\cdot 2 \atop {3x+2y=7} \ |\cdot(-3)} \right. \\\\\\+\left \{ {{10x+6y=22} \atop {-9x-6y=-21}} \right. \\-----------\\x=1\\\\2y=7-3x=7-3\cdot 1=7-3=4\\\\y=4:2=2\\\\Otvet \ : A\ \Big(1 \ : \ 2\Big)[/tex]