Number of solutions of $x + y = 5,\ x + y = 7$ is

Number of solutions of $x + y = 5,\ x + y = 7$ is
  1. $0$
  2. $1$
  3. infinite
  4. $2$

Solution

Same coefficients, different constants $\Rightarrow$ parallel, no solution.

Asked in: MH-SSC-9

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