$2x + 5y = 16,\ 3x - 2y = 5$. $x$ equals

$2x + 5y = 16,\ 3x - 2y = 5$. $x$ equals
  1. $3$
  2. $2$
  3. $1$
  4. $4$

Solution

Multiply 1st by $2$: $4x + 10y = 32$. Multiply 2nd by $5$: $15x - 10y = 25$. Add: $19x = 57 \Rightarrow x = 3$.

Asked in: MH-SSC-9

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