Question

Find the value of angles x and y in following figure

Answer 1

4x+30+30=180
4x+60=180
therefore,
4x=120
x=30.
4*x= 4*30=120
therefore,
4x+y=180
120+y=180
therefore,
y=60
I hope it would help you.
good luck.

Answer 2

180 = 4x +30+30
180 =4x +60
180 - 60 =4x
120 =4x
x = 120÷4
x=30
so 4x +30 = 4 [30] +30
=120 +30
4x +30 = 150
4x =120
180 = 4x + y
180 = 120 +y
180-120=y
60=y