Answer:
y=51
Step-by-step explanation:
We know that the two outer angles of a triangle are equivalent to the outer angle if both the angle and the triangle are on a straight line.
So, [tex]y-20+y+16=y+47[/tex]
If we add like terms on the left side, we get [tex]2y-4=y+47[/tex]
Now, let’s add 4 to each side. If we do, we get [tex]2y=y+51[/tex]
Finally, we subtract y from each side to find y. Thus, [tex]y=51[/tex]
