B.
Use the photo for future references.
Answer: 5x ( x - 5y )
Step-by-step explanation:
5x+12z Because you take, 3z+9z and that is equivalent to 12z. and then you put the 5x back into the equation so it is 5x+12z
<span>y - 1 = 2 (x - 2) is the red graph.
</span><span>4x + 6y = -12 is the blue graph.
</span><span>f (x) = -</span>

<span>x - 2 is the green graph.
:)</span>