Which of the following equations has a solution of −11/4 ?(1 point)

Responses

−1/2x=11/2

−2x=11/2

1/2x=−11

−2x=2/11

1 answer

To determine which equation has a solution of \(-\frac{11}{4}\), we can substitute \(-\frac{11}{4}\) into each equation and check if it holds true.

  1. Equation: \(-\frac{1}{2}x = \frac{11}{2}\) \[ -\frac{1}{2}\left(-\frac{11}{4}\right) = \frac{11}{2} \] \[ \frac{11}{8} \neq \frac{11}{2} \quad \text{(False)} \]

  2. Equation: \(-2x = \frac{11}{2}\) \[ -2\left(-\frac{11}{4}\right) = \frac{11}{2} \] \[ \frac{22}{4} = \frac{11}{2} \quad \text{(True)} \]

  3. Equation: \(\frac{1}{2}x = -11\) \[ \frac{1}{2}\left(-\frac{11}{4}\right) = -11 \] \[ -\frac{11}{8} \neq -11 \quad \text{(False)} \]

  4. Equation: \(-2x = \frac{2}{11}\) \[ -2\left(-\frac{11}{4}\right) = \frac{2}{11} \] \[ \frac{22}{4} = \frac{11}{2} \neq \frac{2}{11} \quad \text{(False)} \]

From the evaluations, the second equation \(-2x = \frac{11}{2}\) is the only one that gives \(-\frac{11}{4}\) as a solution.

Thus, the correct response is: \(-2x = \frac{11}{2}\)