Question
Which of the following equations are linear equations in two variables?(i) $y=-2 x+7 \quad$ (ii) $x-3 y=5 \quad$ (iii) $y=-x^{2}+4 \quad$ (iv) $y^{2}=x-6$
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The variables $x$ and $y$ are both of the first degree (i.e., they are raised to the power of 1). Show more…
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