$x + 2y = 4,\ 3x - y = 5$. $x$ equals

$x + 2y = 4,\ 3x - y = 5$. $x$ equals
  1. $2$
  2. $1$
  3. $3$
  4. $4$

Solution

Multiply 2nd by $2$: $6x - 2y = 10$. Add to first: $7x = 14 \Rightarrow x = 2$.

Asked in: MH-SSC-9

Practice more Linear Equations in Two Variables questions on Aicharya