Class 9 Mathematics Linear Equations in Two Variables Mix Examples - Linear Equations in Two Variables

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Let $y$ vary directly as $x$. If $y=12$ when $x=4$,then write a linear equation. What is the value of $y$ when $x=5$?

A
$y=3x, y=15$
B
$y=4x, y=20$
C
$y=12x, y=60$
D
$y=x/3, y=5/3$

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Class 9

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Linear Equations in Two Variables

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Mix Examples - Linear Equations in Two Variables

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