Which shows how to solve the equation 3 fourths x is equal to negative 6 for x in one step?

To solve (3/4)x = -6 in one step, multiply both sides by the reciprocal of 3/4, which is 4/3. This gives (4/3)(3/4)x = (-6)(4/3), so x = -8. Choice C shows multiplying both sides by 4/3.

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