Question

find the value of k if ( 2k-1,k) is solution of the equation 10x-9y=12

Answer 1

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HERE'S THE ANSWER...

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▶️ If ( 2k-1,k) is solution of the equation 10x-9y=12. Then it will satisfy it if we put the values in place of x and y

=> 10 x - 9 y = 12

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

=> 20 k - 10 - 9 k = 12

=> 11 k - 10 = 12

=> 11 k = 12 + 10

=> 11 k = 22

=> k = 2

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Answer 2

10x-9y=12
X=2k-1, y=k
10(2k-1)-9k=12
20k-10-9k=12
11k=12+10
K=22/11=2