Question

if (2,5) is a solution of 3x+ky=31​

Answer 1

Step-by-step explanation:

3x+ky=31

3(2)+k(5)=31

6+5k=31

5k=31-6

5k=25

k=25/5

k=5

Answer 2

$Given \: (2,5) \:is \:a \: solution \:of \: 3x+ky=31$

$Substitute \: x = 2 \: and \: y = 5 \: in \: the$

$equation , we \: get$

$3\times 2 + k \times 5 = 31$

$\implies 6 + 5k = 31$

$\implies 5k = 31 - 6$

$\implies 5k = 25$

$\implies k = \frac{25}{5}$

$\implies k = 5$

Therefore.,

$\red{ Value \: of \:k } \green { = 5 }$

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