Answer:
3
Step-by-step explanation:

Hope this helps!
I'm sorry but what's the full question?
X = -4
Y = 1
1 = -4 + 5
-4 - 5(1) = -9
Answer:
b=c-ax/y
Step-by-step explanation:
1) ax + by = c
-ax
2) by = c - ax
3) by/y = b and c - ax/y
4) b = c-ax/y
Answer:
not sure about 1
for number 2 it is 5 over 4 . for y, 5 10 15 20 is a multiple of 5 so the change is 5. for x, 4 8 12 16 is a multiple of 4 so the change is 4.