the answer to this problem is -4
Answer:

Step-by-step explanation:
1. Distribute the X across the equation: 
2.
3.
3.
Answer:
x=1
y=-3
z=-7
Step-by-step explanation:
Area = 1/2 x base x height
Area = 1/2 x 9 x 4
Area = 9 x 2
Area = 18 cm^2
The idea for transitions for an equation like this is

where m = slope
h = how much left or right (note the negative)
k = how much up or down
moving 13 down would mean
k = -13
so

D. would be your answer