Me ayudarían a resolver y a entender mi guía?

A)17y - y + 9 = 32 - 19y + 82

16y + 19y = 114 - 9

35y = 105

y = 105 / 35

y = 3

b)2[3x + 1 - 2(x + 4)] - (3x + 5) = 0

2[3x + 1 - 2x - 8] - 3x - 5 = 0

6x + 2 - 4x - 16 - 3x - 5 = 0 - x - 19 = 0

x = - 19

c) - 3 + x - 5[2x + 4 - (x + 2)] = x + 2 - 3 + x - 5[2x + 4 - x - 2)] = x + 2 - 3 + x - 10x - 20 + 5x + 10 = x + 2

5x = - 15

x = - 3

d) (x - 2)² - (3 - x)² = 1

x² - 4x + 4 - (9 - 6x + x²) = 1

x² - 4x + 4 - 9 + 6x - x² = 1

2x = 1 + 5

x = 6 / 2

x = 3

e) (x - 2)² + x(x - 3) = 3(x + 4)(x - 3)

x² - 4x + 4 + x² - 3x = 3(x² - 3x + 4x - 12)

2x² - 7x + 4 = 3x² - 9x + 12x - 36

4 = x² + 10x - 36

x² + 10x - 40 = 0

Aplicando formula general :

<img src="https://tex.z-dn.net/?f=x%3D-b%2B-%20%5Csqrt%7Bb%5E2-4ac%7D%20%2F2a" />

<img src="https://tex.z-dn.net/?f=x1%3D-10%2B%20%5Csqrt%7B10%5E2%281%29%28-40%29%7D%2F2%281%29%3D%20%5Csqrt%7B65%7D-5%20%20" />

<img src="https://tex.z-dn.net/?f=x2%3D-10-%20%5Csqrt%7B10%5E2%281%29%28-40%29%7D%2F2%281%29%3D-%20%5Csqrt%7B65%7D-5" />.