Question

Помогите пожалуйста!!!
x=
y=
​

Answer 1

$2y + 10x = 9 \\ 10x - 2y = 0$

Складываем

$20x = 9 \\ x = \frac{9}{20} \\ x = 0.45 \\ \\ 2y + 10 \times 0.45= 9 \\ 2y + 4.5 = 9 \\ 2y = 9 - 4.5\\ 2y = 4.5 \\ y = 4.5 \div 2 \\ y = 2.25 \\ \\ otvet \: (0.45 \: ; \: 2.25)$