(A) Given the linear equation $5x - ay = 7$.Since $(3, 2)$ is a solution,we substitute $x = 3$ and $y = 2$ into the equation.$5(3) - a(2) = 7$$15 - 2a

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(A) Given the linear equation $5x - ay = 7$.Since $(3, 2)$ is a solution,we substitute $x = 3$ and $y = 2$ into the equation.$5(3) - a(2) = 7$$15 - 2a = 7$$-2a = 7 - 15$$-2a = -8$$a = \frac{-8}{-2}$$a = 4$Therefore,the correct option is $A$.

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

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If $(3, 2)$ is one of the solutions of $5x - ay = 7$,then $a = \dots$

A
$4$
B
$6$
C
$12$
D
$1$

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Linear Equations in Two Variables

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Mix Examples - Linear Equations in Two Variables

If $(3,5)$ is a solution of the equation $2x + 5y = k$,find the value of $k$.

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Draw the graph of the linear equation whose solutions are represented by the points having the sum of the coordinates as $10$ units.

Easy

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Write whether the following statement is True or False. Justify your answer:
The graph of the linear equation $x + 2y = 7$ passes through the point $(0, 7).$

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$A$ linear equation in two variables has how many solutions?

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Give equations of four lines passing through the point $(3, 5)$.

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If $(3, 2)$ is one of the solutions of $5x - ay = 7$,then $a = \dots$

Similar Questions

If $(3,5)$ is a solution of the equation $2x + 5y = k$,find the value of $k$.

Draw the graph of the linear equation whose solutions are represented by the points having the sum of the coordinates as $10$ units.

Write whether the following statement is True or False. Justify your answer:The graph of the linear equation $x + 2y = 7$ passes through the point $(0, 7).$

$A$ linear equation in two variables has how many solutions?

Give equations of four lines passing through the point $(3, 5)$.

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Write whether the following statement is True or False. Justify your answer:
The graph of the linear equation $x + 2y = 7$ passes through the point $(0, 7).$