Question

(2 k - 1 , k) is solution of 10 x - 9 y = 12 find k
please give the right answer with explanation​

Answer 1

Answer:

Step-by-step explanation:

10x - 9y = 12

10(2k - 1 ) - 9(k) = 12

20k - 10 - 12 - 9k = 0

11k - 22 = 0

K = 22/11

K = 2

Answer 2

Answer:

$\huge\fcolorbox{red}{yellow}{Solution}$

10x−9y=12

10(2k−1)−9k=12

⇒20k−10−9k=12

⇒11k=22⇒k=2.