Please provide working, 30 points will mark brainliest

Answer:
-y = 3x - 4
Step-by-step explanation:
Answer:
y = 3x + 7
Step-by-step explanation:
y = mx + c
Rearrange "3x - y +2 = 0"
-y = -3x -2
y = 3x + 2
m = 3
Substitute into general equation:
y = 3x + c
4 = 3(-1) + c
4 = -3 + c
7 = c
Therefore:
y = 3x + 7