Answer:
x=7
y=16
Step-by-step explanation:
The two lengths at the top of the kite are equal. The two lengths at the bottom of the kite are also equal.
Using the bottom lengths:
2x+5 = x+12
Subtract x from each side
2x-x +5 =x+12-x
x+5 =12
Subtract 5 from each side
x+5-5 = 12-5
x=7
Now using the top lengths
y-4 = x+5
y-4 =7+5
y-4 =12
Add 4 to each side
y-4+4=12+4
y =16
