Answer:

Step-by-step explanation:
Since
and
are equal, we can set them equal to each other:

Substitute
to solve for
:

First Column, -x and 5 third column, -x and 2
16 units just count the tiny lines in the middle by 2
The common factor of 7 and 15 is 1
Answer:
B
Step-by-step explanation:
X=5, Y=3