Five times a number minus $3$ equals twice the number plus $9$. The number is

Five times a number minus $3$ equals twice the number plus $9$. The number is
  1. $4$
  2. $3$
  3. $5$
  4. $2$

Solution

$5x - 3 = 2x + 9 \Rightarrow 3x = 12 \Rightarrow x = 4$.

Asked in: IMO

Practice more LINEAR EQUATIONS IN ONE VARIABLE questions on Aicharya