Answer:
(3 + 19) - 12 = 3 + (19 - 12).
Step-by-step explanation:
The parentheses have migrated to the right whereas the order of the numbers and operations has stayed the same.
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
Answer: 23 units just took the test
Answer:
Step-by-step explanation:
