(49 + 14x + x²) - (25 + 10x + x²) = 6у
49 + 14x + x² - 25 - 10x - x² = 6у
24 + 4x = 6у
4x = 6у - 24
x = (6у - 24) / 4
x = (3у - 12) / 2
(2 - y)² - (6 - y)² = 4x
(4 - 4y + y²) - (36 - 12y + y²) = 4x
4 - 4y + y² - 36 + 12y - y² = 4x
-32 + 8y = 4x
8y = 4x + 32
y = (4x + 32) / 8
y = (x + 8) / 2
(49 + 14x + x²) - (25 + 10x + x²) = 6у
49 + 14x + x² - 25 - 10x - x² = 6у
24 + 4x = 6у
4x = 6у - 24
x = (6у - 24) / 4
x = (3у - 12) / 2
(2 - y)² - (6 - y)² = 4x
(4 - 4y + y²) - (36 - 12y + y²) = 4x
4 - 4y + y² - 36 + 12y - y² = 4x
-32 + 8y = 4x
8y = 4x + 32
y = (4x + 32) / 8
y = (x + 8) / 2