Answer:
x = 27
y = 10
Explanation:
Since AB = DC and AD = BC:
3x - 9 = 42
3x = 42 + 9
3x/3 = 51/3
x = 17
4y - 3 = 37
4y = 37 + 3
4y/4 = 40/4
x= 17
y= 10
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