Please help me answer this question

x = 7, y = 16

Step-by-step explanation:

the sides with measure 2x + 5 and x + 12 are congruent, so

2x + 5 = x + 12 ( subtract x from both sides )

x + 5 = 12 ( subtract 5 from both sides )

x = 7

Then

x + 5 = 7 + 5 = 12

The sides with measure y - 4 and x + 5 are congruent, so

y - 4 = x + 5, that is

y - 4 = 12 ( add 4 to both sides )

y = 16

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true