<span>For the Vertical Angle theorem, if a slant line is intersected by a horizontal, the opposite angles must be equal. In here, he stated that the sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees. It means that the sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. </span>
Answer:

Step-by-step explanation:

Take
and
on the other side of the equal to sign:

Now solve for y:

Take 2 one the other side of the equation:

Hope this helps :)
535 points. You could either add 867 to -332 or subtracted 332 from 867. I hope this was helpful.
Answer: The one on the right. Each side is multiplied by 6, therefore they are similar.