Question

The pair of equations x + 2y – 5 = 0 and −3x – 6y + 15 = 0 have: *​

Answer 1

$\huge ⤳ \mathtt {\red {\underline {\green {Question:-}}}}$

The pair of equations x + 2y – 5 = 0 and −3x – 6y + 15 = 0 have:

$\huge ⤳ \mathtt {\purple {\underline {\orange {Solution:-}}}}$

$x + 2y - 5 = 0.....(i) \\ - 3x - 6y - 15 = 0....(ii) \\ \\ now \: multiplying \: 3 \: in \: (i) \: and \: add \\ \\ 3x + 6y - 15 = 0 \\ - 3x - 6y + 15 = 0 \\ \\ now \: we \: get \: 0. \\ \\ \blue{ hene \: \boxed{ 0} \: is \: ur \: answer}$