Three times a number minus $5$ equals $25$. The number is

Three times a number minus $5$ equals $25$. The number is
  1. $10$
  2. $5$
  3. $15$
  4. $\dfrac{20}{3}$

Solution

$3x - 5 = 25 \Rightarrow x = 10$.

Asked in: NSO

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