Answer:
x = 7, y = 16
Step-by-step explanation:
The consecutive sides of a kite are congruent, thus
2x + 5 = x + 12 ( subtract x from both sides )
x + 5 = 12 ( subtract 5 from both sides )
x = 7
And
y - 4 = x + 5, that is
y - 4 = 7 + 5 = 12 ( add 4 to both sides )
y = 16
