Answer:
3
Step-by-step explanation:
3-8 equals to -5 because if you stele a number line and count 8 points from three it will equal -5
36 should be added to both sides because 12/2= 6 then you square 6 to get 36 and that should be it.
Answer:
y = -2x + 9
Step-by-step explanation:
y = -2x + 7
(4, 1)
1 = -2 ( 4 ) + b
1 = -8 + b
b = 9
y = -2x + 9