Question 1091615
.
<pre>
Since the angles are corresponding,  m < 1 = m < 2,  which gives you an equation

45 = x + 25

with the solution x = 20 degrees.
</pre>

Solved.


On corresponding angles, see the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Angles/Parallel-lines.lesson>Parallel lines</A>

in this site.


Also, &nbsp;you have this free of charge online textbook on Geometry

&nbsp;&nbsp;&nbsp;&nbsp;<A HREF=https://www.algebra.com/algebra/homework/Triangles/GEOMETRY-your-online-textbook.lesson>GEOMETRY - YOUR ONLINE TEXTBOOK</A> 

in this site.


The referred lesson is the part of this online textbook under the topic 
"<U>Basics of angles. Supplementary, complementary angles. Vertical angles. Parallel lines</U>".



-----------
<U>Notice</U>. Before asking "What is the answer ?" educated people formulate their question. 


Even more, some of them say "Please . . . ".


This is how it is accepted in the entire world.



Just in case if you don't know it . . .