Answer:
Y=51, X=23
Step-by-step explanation:
First find y, all angles of a triangle will add up to 180, so set it up as 39+y+90=180
add like terms 39 and 90 to get 129, y+129=180
subtract 129 from 180 to get 51, y=51
Next find x, first you must find the bottom right angle of x's triangle, since a straight line is 180, you must add the three angles that form a straight line to get 180
set it up as 50+y+z=180 (z is our unlabeled angle in the bottom right of x's triangle, we know y=51 so fill that in
50+51+z=180, add 50 and 51 and subtract from 180 to get 101
101 is our z that we need to use to find x
Last equation, 101+56+x=180, solve for x, x=23
