Answer:
y=7
Explanation:
We know the tops 2 parts of the kite have to be equal
x+3 = 15
Subtract 3 from each side
x+3-3 =15-3
x=12
We also know the bottoms have to be equal
3y-1 =2x-4
Substitute the value for x
3y-1 =2(12) -4
3y-1 =24-4
3y-1 =20
Add 1 to each side
3y-1+1 =20+1
3y = 21
Divide each side by 3
3y/3 = 21/3
y = 7