Question

x= 2k -1, y=k is a solution of the equation x-5y-7=0 then find the value of k​

Answer 1

Step-by-step explanation:

let x= 2k-1 , y=k

x-5y-7 =0

2k - 5 (k) -7 =0

2k -5k -7=0

(2k -7 ) (k+1) = 0

2k-7 =0 or k+1 =0

2k =7 k= -1

k = 7/2

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