(D) Given that $(-2, -3)$ is a solution of the equation $ax - 5y = 21$.This means that $x = -2$ and $y = -3$ satisfy the equation.Substituting these v

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(D) Given that $(-2, -3)$ is a solution of the equation $ax - 5y = 21$.This means that $x = -2$ and $y = -3$ satisfy the equation.Substituting these values into the equation:$a(-2) - 5(-3) = 21$$-2a + 15 = 21$$-2a = 21 - 15$$-2a = 6$$a = 6 / -2$$a = -3$

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

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If $(-2, -3)$ is a solution of the equation $ax - 5y = 21$,then $a = \ldots$

A
$0$
B
$-2$
C
$5$
D
$-3$

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Linear Equations in Two Variables

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Mix Examples - Linear Equations in Two Variables

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If $(-2, -3)$ is a solution of the equation $ax - 5y = 21$,then $a = \ldots$

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If a linear equation has solutions $(-2, 2), (0, 0)$ and $(2, -2)$,then it is of the form

Express the following linear equation in the form $ax + by + c = 0$ and indicate the values of $a, b$ and $c$ in each case:$2y - 3x = 14$

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Express the following linear equation in the form $ax + by + c = 0$ and indicate the values of $a, b$ and $c$ in each case:
$2y - 3x = 14$