Question

If (2k-1,k) is a solution of the equation 10x-9y=12, then find k. Plzzzz reply fast!!!!!!! Tomorrow is my pre - board of maths!!!!!

Answer 1

10[2k-1]-9[k]=12
20k-10-9k=12
11k-10=12
11k=12+10
11k=22
k=22/11
k=2

Answer 2

Answer:k=2

Step-by-step explanation:

10x-9y=12

replace value

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

20k-10-9k=12

11k-10=12

Send 10 to other side

11k=12+10

11k=22

k=22/11

K=2

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