Which of the following are Pair of Linear Equation in two variables?

$2 x + y = 2; 3 x - z = 2$

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$12 x + 4 y + 3 = 0; 4 x + 4 y + 4 = 0$

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$x + 2 = 0; a + 2 b = 0$

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$x + y - 3 = 0; 4 a + 2 b + c = 24$

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Solution

The correct option is B
$12 x + 4 y + 3 = 0; 4 x + 4 y + 4 = 0$

Two linear equations in same two variables are called pair of linear equation in two variables.

$12 x + 4 y + 3 = 0 a n d 4 x + 4 y + 4 = 0$
are linear equations in same two variables.

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Which of the following are Pair of Linear Equations in two variables?

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