Question

If x = -2 and y = 3 is a solution of 3y= kx +7 , find the value k.
(a) -1
(b)1
(c)2
(d)-2​

Answer 1

Answer:

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Answer 2

$\Large\bf\underline{\color{blue}{Given:-}}$

• Value of x = -2
• Value of y = 3

$\Large\bf\underline{\color{blue}{To\:Find:-}}$

• Value of k = ?

$\Large\bf\underline{\color{blue}{Solution:-}}$

Let's substitute the values of x and y

$\implies$ 3(3) = k(-2) + 7

$\implies$ 9 = -2k + 7

$\implies$ -2k = 9 - 7

$\implies$ -2k = 2

$\implies$ k = $\cancel\dfrac{-2}{2}$

$\implies$ -1

$\large\bf\therefore\fbox{\color{red}{Option\:a\:-1}}$