Question

розв'язати дану систему способом додавання 6x-5y=16 -3x+2y=-7

Answer 1

Ответ:

$6x - 5y = - 7 \\ 16 - 3x + 2y = - 7 \\ 6x - 5y = - 7 \\ - 3x + 2y = - 23 \\ 6x - 5y = - 7 \\ - 6x + 4y = - 46 \\ - y = - 53 \\ y = 53 \\ 6x - 5 \times 53 = - 7 \\ x = 43 \\ (x.y) = (43.53) \\ 6 \times 43 - 5 \times 53 = 16 - 3 \times 43 + 2 \times 53 = - 7 \\ - 7 = - 7 = - 7 \\ (x.y) = (43.53)$