Solve 3x + 2y + 25 = 0 & x + y + 15 = 0

x = 12, y = - 20

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x = 5, y = - 20

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x = 8, y = 20

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x = 3, y = 20

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Solution

The correct option is A $x = 5, y = - 20$
$3 x + 2 y + 25 = 0$ --------(i)
$x + y + 15 = 0$
$\to x = - 15 - y$ ---------- (ii)
Substituting the value of $x$ in equation (i) we get,
$\to 3 (- 15 - y) + 2 y + 25 = 0$
$\to - 45 - 3 y + 2 y + 25 = 0$
$\to - y = - 25 + 45$
$\to y = - 20$
Putting the value of $y$ in eqn (ii) we get,
$x = - 15 - (- 20)$
$\to x = - 15 + 20$
$\to x = 5$

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