Mejor respuesta

2

Explicación paso a paso : a) 4 / 7 = x / 63x = (63)(4) / 7x = 36b)35 / 49 = x / 7x = (7)(35) / 49x = 5c) x / 63 = 9 / 7x = (63)(9) / 7x = 81d) 3 / 5 = 24 / xx = (5)(24) / 3x = 40e)66 / x = 11 / 4x = (4)(66) / 11x = 24f) 16 / 8 = 20 / xx = (8)(20) / 16x = 10g)x + 5 / 5 = 10 / 14x = 10 / 14x = 3.

5h)x - 4 / 4 = 20 / 16x - 1 = 20 / 16x = 20 / 16 + 1x = 2.

25i)x + 3 / 3 = 27 / 9x + 1 = 27 / 9x = 27 / 9 - 1x = 2j)x + 8 / 4 = 5 / 2x + 2 = 5 / 2x = 5 / 2 - 2x = 0.

5k)x - 3 / 7 = 16 / 28x = (7 / 1)(16 / 28) + 3x = 7l)x + 2 / 9 = 33 / 27x = (9 / 1)(33 / 27) - 2x = 9espero te sirvan mis respuestas.