Halle el valor de la incógnitahola por favor me ayudan es urgente(1)?

50 - [3(2x - 3) - 2(2x - 1)] = 23

50 - 6x - 9 - 4x + 2 = 23

43 - 10x = 23

20 = 10x

x = 2 = = = = =

x ^ 2 + 2x + 1 = x ^ 2 + 3x - 5

x ^ 2 - x ^ 2 + 2x - 3x = - 5 - 1 - x = - 6

x = 6 = = = = = = = = = = = =

(2x - 1)² + x(x - 2) = 5x(x - 3)

4x ^ 2 - 4x + 1 + x ^ 2 - 2x = 5x ^ 2 - 15x

4x ^ 2 + x ^ 2 - 5x ^ 2 - 4x - 2x + 15x = - 1

9x = - 1

x = - 1 / 9 = = = = = = = = = = = = = = (2x - 1)(3x + 2) - (x - 2)² = 5x(x - 2) + 4

6x ^ 2 + x - 2 - x ^ 2 + 4x - 4 = 5x ^ 2 - 10x + 4

6x ^ 2 - x ^ 2 - 5x ^ 2 + x + 4x + 10x = 4 + 2 + 4

15x = 10

x = 10 / 5 = 2 / 3 = = = = = = = = = = = =

(x + 2)² + (3x - 1)(x + 2) = (3x + 4)² - 5x(x + 3)

x ^ 2 + 4x + 4 + 3x ^ 2 + 5x - 2 = 9x ^ 2 + 24x + 16 - 5x ^ 2 - 15x

x ^ 2 + 3x ^ 2 - 9x ^ 2 + 4x + 5x - 24x + 15x = 16 - 4 + 2 - 5x ^ 2 = 14

x ^ 2 = - 14 / 5

No tiene solucion (no hay cuadrado de un numero que de negativo).