Question

If (2,1) is the solution of the equation 2x + ky = 7, then find the value

of k.
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Answer 1

Answer:

k=3

Step-by-step explanation:

given (2,1) is soln of 2x+ky=7

substitute given pt in eqn to get value of k

2(2)+k(1)=7

4+k=7

k=3