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Linear Equations in Two Variables — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsLinear Equations in Two Variables1 Mark
MCQ
Write the correct answer in the following: Any solution of the linear equation $2x + 0y + 9 = 0$ in two variables is of the form,
  • ✓
    $\Big(-\frac{9}{2},\text{m}\Big)$
  • B
    $\Big(\text{n},-\frac{9}{2}\Big)$
  • C
    $\Big(0,-\frac{9}{2}\Big)$
  • D
    $(-9,0)$
✓

Answer

Correct option: A.
$\Big(-\frac{9}{2},\text{m}\Big)$
The given linear equation is
$2x + 0y + 9 = 0$
$\Rightarrow 2x + 9 = 0$
$\Rightarrow 2x = -9$
$\Rightarrow x = -\frac{9}{2}$ and $y$ can be any real number.

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