Simplify: (x)/(x - 3) - (3)/(x + 4) + (7)/(x² + x - 12)

Rewrite the expression using the LCD:

O ((x(x + 4) - 3(x - 3) + 7))/((x - 3)(x + 4))
O ((x(x + 4)+ 3(x - 3) + 7))/((x - 3)(x + 4))
O ((x(x + 4) + 3(x - 3) - 7))/((x - 3)(x + 4))