Question

Упрости систему, помогите!!​

Answer 1

Ответ:

$y + 1 = \frac{3x - 4}{2} \\ 5x + y = 3x + 11 \\ \\ 2y + 2 = 3x - 4 \\ 5x + y - 3x = 11 \\ \\ - 3x + 2y = - 4 - 2 \\ 2x + y = 11 \\ \\ - 3x + 2y = - 6 \\ 2x + y = 11$

$- 3x + 2y = - 6 \\ - \\ 2 \times 2x + 2y = 2 \times 11 \\ \\ - 3x - 4x = - 6 - 22 \\ 7x = 28 \\ x = 4 \\ \\ 2 \times 4 + y = 11 \\ y = 11 - 8 = 3$

ответ (4; 3)