Question

What is the value of y?

Answer 1

Explanation:

You'll start by finding the opposite angle of 104

180-104= 76

Then you'll get the triangular equation (keep in mind that a triangle's angles always add up to 180)

180 = 76 + (2y - 1) + y

following the poperties of equality you should get y = 35

Hope this helps :)

Answer 2

Y=35 with working shown in the photo