Answer:
P=3, q=-1
Step-by-step explanation:
4p+3q=9 equation 1
2p+3q=3 equation 2
-4p-3q=-9 multiply equation 1 by -1 to eliminate q
-2p+0=-6 add above 2 equations
-2p=-6
p=3
solve for q by inserting p value into either equation
2p+3q=3
2(3)+3q=3
6+3q=3
3q=-3
q=-1
