Use substitution and substitute y into the other equation. One of the equations already gives you y in terms of x, so use that and substitute it into the other equation. y = 3x - 4
Plug into the other equation: -3y = -9x + 12
-3(3x-4) = -9x + 12
-9x + 12 = -9x + 12
This is an identity. So that means that any value of x makes this equation true. So B.
I still cant see it sorry cant help without seeing it can you spell the question?
Answer:
I think humans live in these places.
Step-by-step explanation:
I think humans live in these places because they are man-made structures made for civilizations, for example the houses and roads.
