Answer:
u = 4
v = 18
Step-by-step explanation:
As with your other parallelogram problems, the diagonals bisect each other, so the two halves are equal length.
2u +2 = 5u -10
2 = 3u -10 . . . . . . subtract 2u from both sides
12 = 3u . . . . . . . . add 10 to both sides
4 = u . . . . . . . . . . divide both sides by 3
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6 = v/3
18 = v . . . . . . . . multiply both sides by 3