Given equation 7x + py =2 and also the given solution is (2,2), it means that x=2 and y=2

so substituting the values;

7(2) + p(2) = 2

14 + 2p = 2

2p = 2- 14

2p = -12

p = -12/2

p = -6

Therefore the value of p should be -6 and the correct option is (a)