Question

Solve for y.
Enter your answer in the box.
y =

Answer 1

We know that both those angles plus angle z equals 180 degrees. As the triangle is equilateral, each angle is congruent, therefore equaling 60 degrees. you have 
5y+10=60
5y+10-10=60-10
5y=50
y=10

Answer 2

I’m pretty sure y is 10