5y - (7-2y) - (4y+8) = 2y 6y * (14y-9) - 13y * (6y-1) = 24y+13 (2x-3) ^2 - (2x+1) * (2x-5) + 3x-14 (x+4) * (x-4) - (2x-3) ^2=-3x * (x+1) - 22

Решим уравнения:

1) 5 * y - (7 - 2 * y) - (4 * y + 8) = 2 * y;

5 * y - 7 + 2 * y - 4 * y - 8 = 2 * y;

3 * y - 15 = 2 * y;

3 * y - 2 * y = 15;

y = 15;

2) 6 * y * (14 * y - 9) - 13 * y * (6 * y - 1) = 24 * y + 13;

84 * y^2 - 54 * y - 78 * y^2 + 13 * y = 24 * y + 13;

6 * y^2 - 41 * y - 24 * y - 13 = 0;

6 * y^2 - 65 * y - 13 = 0;

y ₁ = (65 - √ 4537) / (2 * 6) ≈ - 0.19644;

y ₂ = (65 + √ 4537) / (2 * 6) ≈ 11.030.

3) (2 * x - 3) ^2 - (2 * x + 1) * (2 * x - 5) + 3 * x - 14 * (x + 4) * (x - 4) - (2 * x - 3) ^2 = - 3 * x * (x + 1) - 22;

- (2 * x + 1) * (2 * x - 5) + 3 * x - 14 * (x + 4) * (x - 4) = - 3 * x * (x + 1) - 22;

- (4 * x^2 - 10 * x + 2 * x - 5) + 3 * x - 14 * (x^2 - 16) = - 3 * x^2 - 3 * x - 22;

-4 * x^2 + 10 * x - 2 * x + 5 + 3 * x - 14 * x^2 + 224 + 3 * x^2 + 3 * x + 22 = 0;

-15 * x^2 + 14 * x + 248 = 0;

x1 = 7/15 + 1/15 * √ 3769;

x2 = 7/15 - 1/15 * √3769.