How I got my answer before was substitution!
Answer:
Below It shows how to cancel it.
Step-by-step explanation:
4x = 8, so x = 2
5y + 4 = 4, so 5y = 0, so y = 0
(2,0)
Answer: n=2
Step-by-step explanation:
Get graph paper make a graph mark them on your graph and since it says (n,-2) its going down because of the negative 2 i don't think this helped but if it did
No need to estimate. Its 19.8