Question

Реши систему:
{x=2
{18x−y=11

Answer 1

$\left \{ {{x=2} \atop {18x-y=11}} \right.$
$\left \{ {{x=2} \atop {18*2-y=11}} \right.$
$\left \{ {{x=2} \atop {-y=-25}} \right.$
$\left \{ {{x=2} \atop {y=25}} \right.$

Answer 2

×=2
18×-¥=11

×=2
18×2 - ¥=11

×=2
- ¥ =25

×=2
¥= -25

ответ 2;-25