Answer is y= 22
Step by step
We know the triangle dum is equal to 180
One angle is 40, so 180 - 40 = 140
The two angles labeled x are congruent, so 140 / 2 = 70.
X = 70
Now the supplement angle of x and 5y = 180 degrees.
70 + 5y = 180
Subtract 70 from both sides to isolate y
70 - 70 + 5y = 180 - 70
Simplify
5y = 110
Divide both sides by 5 to solve for y
5/5 y = 110/5
y = 22