Question

2(3×+3)-4(5×-3)=×(×-3)-×(×+5)​

Answer 1

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

Aplicando prop. distributiva donde corresponda:

6x + 6 - 20x + 12 = x² - 3x - x²  - 5x

18 - 14x = -8x

  18 = 14x - 8x

  18 = 6x

18/6 = x

Saludos!