Answer:
goal=6
panalty= -10
Step-by-step explanation:
6g+3p=6. <---- multipilly by -3
8g+9p= -42
-18g - 9p = -18
8g+9p=-42
= -10g = -60
goals are worth 6 points
than you would plug the 6 back in either equation
6(6)+3p= 6
36 + 3p = 6
-36. -36
3p=-30
p=-10
so panalties are worth -10 points