It is B because you have to subtract and than you have to add
What phrases? I don't see a photo or any other information. •_•
Answer:



Step-by-step explanation:
We have been given a parallelogram. We are asked to solve for the values of x and y.
We know that opposite sides of parallelogram are equal, so we can set equation as:







Similarly, we will solve for y.





To solve for z, we will subtract y from x as:

Therefore, the value of z is negative 3.