Solution set is {-2,5} Â
First option is correct!
Step-by-step explanation:
2p+q = 1 ,solving the equation for q
 q = 1-2p  equation (1)
9p+3q+3=0,dividing the equation by 3
3p+q+1=0, using substituting method
3p+(1-2p)+1=0
3p-2p+2 Â =0
p  +2 =0
p=-2
substituting the value of p in q=1-2p ,we get
            q = 1-2(-2) = 1+4 =5
solving it for p and q ,we get (-2,5) Â solution set is {(-2,5)}