Odpowiedź :
2x - y - 6 = 0 ⇒ y = 2x - 6
(3x - 1)(1 + 3x) + y = (1 - 3x)²
9x² - 1 + 2x - 6 = 1 - 6x + 9x²
2x - 7 = -6x + 1
2x + 6x = 1 + 7
8x = 8 /:8
x = 1
y = 2x - 6 = 2 · 1 - 6 = 2 - 6
y = -4
{x = 1
{y = -4
2x - y - 6 = 0 ⇒ y = 2x - 6
(3x - 1)(1 + 3x) + y = (1 - 3x)²
9x² - 1 + 2x - 6 = 1 - 6x + 9x²
2x - 7 = -6x + 1
2x + 6x = 1 + 7
8x = 8 /:8
x = 1
y = 2x - 6 = 2 · 1 - 6 = 2 - 6
y = -4
{x = 1
{y = -4