Question

What is x equal to ?

Answer 1

2 triangles are congruent
so
x - y = x + 2
-y = 2
 y = -2

2x - y  = 4x + 2y
2x = -3y
   x = -3/2 y

substitute y = -2 into    x = -3/2 y

   x = -3/2 (-2)
   x = 3

Answer
x = 3 

Answer 2

X is equal to -3 and y is equal to -2.