Answer:
Jacks scores 130 points
Jill scores 75 points
Step-by-step explanation:
J=Jacks score
K=Jills score
2K-20+K=205
So, we can do 3K-20=205
+20 +20
(cancel it out)
and we are left with 3K=225 which is K=75, so we do do 205-75=130(which is jacks score). To prove this we can do 75x2=150-20=130
