Find the value of x and y.

Answer:
x = 6
y = 7
Step-by-step explanation:
The opposite sides are equal in a parallelogram
set the right side equal to the left side and solve for x
2x - 3 = 5x - 21
2x - 5x = -21 +3
-3x = -18
x = 6
set the top side equal to the bottom, using x=6
24 + 1 = 3y + 4
25 - 4 = 3y
21 = 3y
y = 7