Question

Cuanto es 2(3+3)-4(5X-3):X(X-3)-X(X+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

{ x = 3}

Saludos!