Solve $5x + 9 = 0$.

Solve $5x + 9 = 0$.
  1. $-\dfrac{9}{5}$
  2. $\dfrac{9}{5}$
  3. $0$
  4. $-\dfrac{5}{9}$

Solution

$5x = -9 \Rightarrow x = -\dfrac{9}{5}$.

Asked in: IMO

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