Question

решите линейное уравнение
4х+у=2 3х-2у=7 2х-5у=8

Answer 1

Ответ:

$4x + y = 2 \\ y = 2 - 4x$

$3x - 2y = 7 \\ 3x = 7 + 2y \\ x = \frac{7 + 2y}{3}$

$2x - 5y = 8 \\ 2x = 8 + 5y \\ x = \frac{8 + 5y}{2}$