Whena line gets crossed by a tranversal line, the angles on the diagonal are equal to one another.
This means that (2x + 1)° will be equal to 85°
so we can set up the equation 2x +1 = 85 and sove for x
2x = 84 x = 42
Now, take the fact that lines on a line must add up to 180° so we can get the equation (3y + 5) + 85 = 180 and sove for y.
3y + 90 = 180 3y = 90 y = 30
Answer: x = 42, y = 30