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4. Linear Equations in Two Variables
easy
दो चरों वाली रैखिक समीकरण $2 x+0 y+9=0$ के किसी भी हल का रूप होता है
A
$(-9,0)$
B
$\left(0,-\frac{9}{2}\right)$
C
$\left(n,-\frac{9}{2}\right)$
D
$\left(-\frac{9}{2}, m\right)$
Solution
The given linear equation is $2 x+0 y+9=0 \Rightarrow 2 x=-9$
$\therefore \quad x=-\frac{9}{2}$
Since the coefficient of $y$ is $0$ in the given equation, the solution can be given as $\left(-\frac{9}{2}, m\right)$
Standard 9
Mathematics
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