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1990 AMC 12 Question 1

AMC12 · 1990 AMC 12

Question 1

If $\dfrac{\frac{x}{4}}{2}=\dfrac4{\frac{x}{2}},$ then $x=$
  1. $\pm\frac12$
  2. $\pm1$
  3. $\pm2$
  4. $\pm4$
  5. $\pm8$