Respuesta :

boldeagle
-3/2 = (-4/7)u - (4/3)

-3/2 + 4/3 = (-4/7)u

-9/6 + 8/6 = (-4/7)u

(-9 + 8)/6 = (-4/7)u

-1/6 = (-4/7)u

(-1/6) * (-7/4) = (-7/4)*(-4/7)u

7/24 = u

The answer: u = 7/24